Are night owls more intelligent than early birds?

Loved it when I came across research indicating that might be the case. Am tired of hearing about the benefits of getting up at the crack of dawn. It’s a habit we have inherited from traditional societies when mankind rose with the sun and went to bed at sunset. But does it really suit the world we live in today?

are nigth owls more intelligent than early birds

Would US presidents age as much as they do if they didn’t have to get up at the crack of dawn like in a traditional society? Would it benefit mankind to adapt office hours that reflect the world we live in today instead of doing things the way they have always been done?

One study carried out by The University of Liege looking at how our brains are able to focus attention throughout the day found differences in rhythm between “morning” and “evening” people. Their conclusion is that early risers get tired earlier and are hence less productive.

Kanzawa claims more intelligent children go to bed later as adults

And according to another study by Satoshi Kanazawa,”Why Night Owls are more intelligent than morning larks” evening people are of higher intelligence than morning people. He claims that analysis of a large representative sample of young Americans show that more intelligent children grow up to be more nocturnal as adults than less intelligent children.

Both studies believe that evening people usually get more work done and resist the pressure to sleep better than the larks.

Do morning people have the upper hand in business?

Considering such conclusions I can’t help wondering why is it considered that when it comes to being successful in business it’s a virtue to be an early riser and that evening people will be less successful?

Honestly doubt the conclusion that evening people are more intelligent. It has nothing to do with intelligence but body rhythm, endurance and energy. For some reasons we are all different in those areas but the fact that evening people seem to be more productive could be of importance to society.

Time to rethink?

From what I understand about 20% of the population of the world are night owls and only 10% are early birds. And most of us, 70%, can handle both. Honestly why are we adapting business hours to suit 10% of the population of the world?

Intelligence enables flexibility

Kanazaka correctly points out that the more intelligent people are the more prone they are to adapt behaviour that is beneficial to the human race – as opposed to doing things the way they have always been done. Initially new behaviour is scorned but then become the norm. Much of what we do today will be considered absurd by future generations.

Flexible hours a sign of change?

More and more businesses have flexible hours above all because many businesspeople are night owls. And we shouldn’t forget that many intelligent people are entrepreneurs. The current recession is also creating an abundance of small businesses, most of them with much more flexible hours than huge corporations.

Will next generation be prepared to get up at dawn?

Another aspect is that younger people are more likely to be night owls and not happy to get up in the morning while pensioners frequently fall into the rhythm of getting up and going to bed with the sun. But they are now retiring and younger people will fill their positions. And they may not be as willing as the previous generation to adapt their body rhythm to the company. They may simply leave and find jobs where they don’t have to get up at the crack of dawn.

So is it time for the business world to wake up and realize that things are changing? Having workers coming in later and working later will, according to the studies, result in increased productivity and eliminate the afternoon fatigue so obvious in all offices.

What’s your opinion? Do you agree with the studies that night owls are more intelligent than early birds? Or do you believe it’s the other way round? Or maybe you agree with me that it’s not about intelligence but other factors? Will more and more businesses implement flexible hours? Would starting later and working later increase productivity? Is it likely that working hours will change? Will night owls have the upper hand in the future?

(Photo: United States Government Work – Flickr)

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94 Responses to “Are night owls more intelligent than early birds?”

  1. Evelyn Says:

    Hi Catarina,

    I agree with you. It is not about intelligence, but has much to do with other factors.

    I don't think that starting work later will increase productivity. All that really depends on the person.

    Take care,

    Evelyn

    My recent post 12 Ways to Avoid Colds this Holiday Season

  2. catarinaalexon Says:

    Glad you agree with me Evelyn.

    However, I would like to see official business hours changed so that we start later. Or at least that the official hours become more flexible. Why is 80% of the world's population going up at the crack of dawn although it suits just a small minority.

    Don't know about you but the majority of successful people I know all over the world are evening people.

  3. Jeannette Paladino Says:

    Catarina — I'm not sure I agree that night owls are smarter. But I'm a closet night owl. When I tell others what time I go to bed and get up they are horrified and I feel embarrassed. So I don't tell most people — it's sort of ridiculous when you think about it. Why is it more acceptable — and worthy — to get up at the crack of dawn and be in bed at 9 or 10 at night? When I worked for a company I was up every morning at 6 and never got used to it. I'm happy I control my own hours now as an entrepreneur. Love that you wrote on this subject!
    My recent post LinkedIn Enables Message Updates on Company Pages

  4. catarinaalexon Says:

    Jeannette I don't believe intelligence has anything to do with it either. Am also a closet night owl and change rythm swiftly when I can.

    Don't understand why we have to do stick to the kind of official hours that suited a society without electricity? Productivity, and health more than anything else, would definitely increase if we started later.

  5. keepupweb Says:

    Hi Catarina,
    Enough with the studies! Everyone is different and there are so many factors that affect us, how is it measured? Did the same study include napping? Personally, I'm affected by my environment. My most productive hours of the day is when I'm alone with no distractions. So, I find myself working in the morning and evenings. During the afternoon, when it gets a bit chaotic around here, no matter how hard I try, I can't get nearly as much done as I'd like. I do agree that companies need to be more flexible if they want to attract talent including offering flexible hours and work from home options.
    My recent post Are Business Women More Receptive to Helping Each Other Online?

  6. akismet-a31b36b69f990acf5ed30cb1cd3ba646 Says:

    Catarina, I have to say that I definitely do not agree that night owls are more intelligent than early risers. My personal family does not exhibit this trend, that is for sure. Although I do have a niece who is a night owl and she is brilliant, currently in med school. But no, she would be more of an anomoly in my personal experience.

    Further, as a nurse, I have worked day shift, evening shift and night shift. I feel more on-task on days (which for me start at 4am) and I have more energy.

    I believe we are all different and our time clocks are different. What is right for one is not right for another. My early riser son is a straight A without any effort type of kid. Great article though, loved the thinking here. Jana http://www.adoctorandanurse.com

  7. catarinaalexon Says:

    Glad you agree with me that flexible hours will be important to attract talent. Honestly believe official hour will change. You can click on the links to the studies and find out more about them.

  8. catarinaalexon Says:

    Tracy glad you like my aricle and thinking.

    Of course it has nothing to do with intelligence, as I wrote by the way. But hours should be more flexible since the majority of us don't like the kind of working hours you have:-)

  9. catarinaalexon Says:

    Gloria, it's not my findings. You can click on the links to the research to know more. If it's true that morning people are more introvert it's consistent with the findings of one of the surveys that more business people are night owls.

  10. Catherine Lockey Says:

    As a lifelong night owl with what would be called a circadian rhythm difference, I was thrilled to see you write about this Catarina. Please do me a favor and email me the studies you are referring to as this topic is always of interest to me. I read a study (wish I had the url) which claimed night owls are more creative than early birds. I come from a family of great intelligence and all of them have odd sleep issues: There may very well be a link between intellect and night owls. There is also a direct link between body temperature and circadian rhythm – interestingly my daughter and I both have a normal body temperature of 97 degrees – both of us night owls. In addition, it makes sense night owls tend to own their own businesses since they, just like everyone else, need a good night's sleep to survive. Traditional hours deprive them of sleep and ultimately make them sick. I'll go to the occasional 8:00 a.m meeting and must then function on 4 or 5 hours of sleep for the rest of the day. Like a lot of night owls, I'm incapable of napping – unfortunately. I was a teacher when I was younger and every single work day I felt like I had jet lag and was sick with a cold or flu about 75% of the time.
    My recent post Content Marketing: What it is and Why it Works

  11. Slim Says:

    "Early to Bed and Early to Rise does not make you Ben Franklin." –Slim Fairview

    When I began working on my novel, I found out that I did best when I began at 10pm and did by best work between 10pm and 2am.

    If getting "up and at 'em" was such a screamin' deal, why does the Stock Exchange wait until 9:30 to ring the opening bell?

    Slim
    My recent post USPS 1st Class Incompetence

  12. Roberta Budvietas Says:

    I agree with Sherryl and with staff have always tried to be flexible for their schedule. But if you looked at our family – the night owl is definitely smarter but the early bird gets more done. What does that say?

    I know business people who work to meet their client’s needs and that is the ONLY time that matters not the business owner

  13. Susan Oakes Says:

    Okay that must mean I am not that intelligent. I got into the habit of waking early when I was a kid and when working in the corporate world I had to get up early. I still do and find I am sharper in the morning plus I can exercise with the morning sun.

    That said be a night owl if I want to and I do agree about different working hours. When we had the Olympics to avoid the city traffic we could choose either an early morning start and early finish or a late start. I think most of us were more productive during those 2 weeks.
    My recent post Are Your Strategies For Growth Hiding?

  14. catarinaalexon Says:

    Glad you are a night owl like me. Actually because of office hours I'm, like Jeannette put it "a closet night owl". Buty can handle both. Just click on the links in the article and you will get to the studies.

  15. catarinaalexon Says:

    So Slim, you are also a night owl. Good point about the Stock Exchange, but the markets actually work 24/7.

  16. catarinaalexon Says:

    Interesting point about your family Roberta. Any idea why the early birds get more done? Must depend on what they do?

  17. catarinaalexon Says:

    Susan, I'm sure it has nothing to do with intelligence but other factors. Good point about people being more productive when they can chose to work early or late.

  18. GuyW Says:

    I don't believe it has anything to do with intelligence – it's simply about one's own circadian rhythm, modified to an extent by cultural issues. Personally, I’m an early bird (growing up on a farm and being at boarding school in Zimbabwe ensured that), and am almost always awake before 5, but ready for bed by 10. In spite of this apparent lack of ability to stay up late, I manage to get a good bit of work done during the day: in fact I find being an early bird a great advantage as I can get a lot done before things get really busy.

    On the cultural side – as you will know, life in the Middle East tends to start later in the day and go on later at night. In Southern Africa, by contrast, work tends to start at 8 o’clock (as opposed to 9 in most of Europe) and finish at 5.

    Incidentally, there’s also a good body of research to show that one’s ability to make good decisions diminishes over the day – the more decisions you make in the day, and the later it gets, the worse your decisions are likely to be. This is to do with diminishing glucose levels, etc.

    Perhaps there is a similar factor at work with the circadian rhythm – as naturally early birds don’t perform well late at night, while natural owls don’t perform well early in the day…

  19. catarinaalexon Says:

    Guy, as I wrote, I don't believe it has anything to do with intelligence either. Presumably you agree that flexible hours is a good idea in order to accomodate night owls as well?

  20. Rob Burns Says:

    Thanks Caterina, great post!

    I am with you on the 70%, adaptation! Somedays, I often get up as early as 4:30 am and others after 6:00 am, whatever my schedule requires. If I have a presentation or meeting in the afternoon, I will sleep in a bit more and get a good night’s sleep the evening prior. There are days that I work past 10:00 pm in the evening, in fact there are times when I feel my best hours are in the am and then again later in the evening. I do know for certain that if I do not get my seven hours of sleep, on average, my sharpness will deteriorate no matter what time it is the next day and if I can catch up on some sleep with eight hours that is a bonus.

  21. catarinaalexon Says:

    Glad you like my article Rob.

  22. Steven Wray Says:

    I find that my productivity and desire to get up or stay in bed varies according to the seasons and my location. It may also vary with age. As a student I did my best work in the middle of the night. As a family man with a regular job that is not so easy.
    Over time work conditions will become more flexible especially now you can remain in touch with work wherever and whenever you want. I think the piece of research Catarina refers to will have less relevance and value in coming years and the way we work will change markedly.

  23. Dominique Paccaly Says:

    Two cent remarks:
    Is being smarter means being more productive?
    Is being smarter is to free your time to be able to rest?

  24. Joe C Says:

    I'm really lucky. I've always worked in businesses that had flexible hours. I think for knowledge work it's a necessity.

    Now that I'm trying to strike out on my own I'm trying to track when I'm most effective at doing certain tasks.
    My recent post Twitter Workflow Frequently Asked Questions

  25. Angela C. Says:

    I have never heard of a correlation between being a night or morning person and how inteligent someone is. I have met people on both ends of the spectrum. I totally agree that work hours should be more flexible based on each individual. I think as long as people are in the office to cover 8-5 or so (because that's when many other businesses are open), if people float in and out it shouldn't be a problem. I wish more companies subscribed to that mentality.
    My recent post Day 21 – Bits and pieces that POP

  26. mike10613 Says:

    I used to be a night owl, now I'm smart enough to know when to get an early night! I'm also smart enough to know when to get up early. When daylight saving ends at the end of this month, I'll have a lie in! :)

  27. catarinaalexon Says:

    Seems we have more or less the same experience Steven. Glad we agree that working hours will be more flexible in the future.

  28. catarinaalexon Says:

    Your choice Dominique.

  29. catarinaalexon Says:

    Good points Joe.

  30. catarinaalexon Says:

    Kanazawa found that correlation Angela. Personally, as you know, I don't think it has anything to do with intelligence. When you work in an office depends on what you do, don't you think Angela. If a person works with the other side of the world working hours become completely different. The important thing is to be as productive as possible.

  31. catarinaalexon Says:

    In other words Mike you belong to the 70% that can do both.

  32. Easther Says:

    Hi Catarina,
    I guess I could say I am a night owl, I sleep really late, I tend to work better at night. but I struggle getting up early to go to work. But when I have to get up early, I can without the help of an alarm clock.
    My recent post Blog Engage RSS Syndication – Easy Way To Boost Your Traffic

  33. catarinaalexon Says:

    Seems we are similar Easther.

  34. catarinaalexon Says:

    Alan, I'm sure you agree with me that flexible hours is important and would like more companies to use such systems.

  35. Jaime Says:

    Thanks for the article; I enjoyed reading it. Personally, I'm a night owl so much so that my own hubby sometimes couldn't figure out how I managed to handle certain days. Let's just say that it is important to be able to adapt to different situations. I honestly believe that flexibility is necessary in our days. I have always wondered if it matters if we work early or later in the day as long as the job is done. As for myself, I find that I'm more result oriented when I work late but I have always managed to adapt myself as according to needs and environment.

  36. catarinaalexon Says:

    Glad you like my article Jaime. Agree with the points you are making.

  37. catarinaalexon Says:

    Glad you agree with me Joseph.

  38. Vernessa Taylor Says:

    Hi Caterina,

    Interesting studies you've unearthed. I'd love to read them when time permits. I've never seen a study that correlates intelligence with body rhythm and preferred work time. Knowing many, many intelligent people (like those weighing in here on your article), I think the studies would have to have much more empirical data before being taken serious.

    I'm decidedly a night owl. I've always been one but still need 8+ hours of sleep whenever I make it to bed. For certain types of projects, my absolute favorite time to work is to start at 10pm and flow through until about 7am. Of course, being a night owl doesn't jive well with activities that require daytime interaction with clients, colleagues, or businesses that keep traditional hours. So, in that respect, I'm flexible, and being results oriented, I can work day or night.
    My recent post Customer Referral Systems: Automation is Your Secret Key

  39. mike54martin Says:

    Hi there. Interesting post and discussion. I am definitely an early bird but I am not sure that it's much of an advantage in the 'real world". Seems to me that night owls have the most fun.
    Mike

  40. catarinaalexon Says:

    That's a good way of looking at it Mike.:-)

  41. catarinaalexon Says:

    Vernessa, of course it has nothing to do with intelligence, like I wrote, but other factors. Seems, you like me and 70% of mankind can handle both but are a "closet night owl".

    There are links to the studies in my article so you can read more.

  42. catarinaalexon Says:

    Alan I really think we have different body rhythms and that it's not just a question of getting used to something. Some people simply cannot get used to getting up at say, 4 o'clock in the morning and are always tired, no matter how long they do so. You can adapt but there are limits.

  43. catarinaalexon Says:

    Glad you agree with me that's it's nothing to do with intelligence Stacy.

  44. catarinaalexon Says:

    Good points James:-). Love the one about cornfields in Manhattan. Night owl in NY that's a bit tricky when it comes to business hours – or maybe you are an intern at Goldman sleeping in a sleeping bag under your desk after Tokyo has opened?:-)

  45. jackiepurnell Says:

    Hi Catarina

    I find that I seem to rotate through patterns. I love both ends of the spectrum because thats when I find the most peace and quiet and ability to get things done.

    You have to work with your own natural rythyms. What suits one dosen't suit another, I don't think intelligence has anything to do with it.

    My recent post Love Brand or Dud Brand…Which Are You? (pt2)

  46. catarinaalexon Says:

    Seems we agree Jackie.

  47. catarinaalexon Says:

    Thank you Sterling. We are all different in this respect. Since more and more people will be self employed most likely flexible hours will be the norm in the future, which will increase productivity.

  48. catarinaalexon Says:

    When it comes to body rhythm we are all different. The fact that some successful people are up early doesn't mean that they are morning people. Just that they have adapted to official working hours. Or even that they need very little sleep. Honestly believe more flexible hours will benefit mankind as a whole.

  49. Peggy Says:

    I have to agree with Catarina and Jeannette and others who've posted. Night owls are actually often considered unusual, lazy even. Not true. I've always been a night owl. Some studies have indicated it all depends on what time you were born. Possible?

    Night owls don't often get the opportunity to live by their own rhythms, getting up much too early, but required to do so by the "norm". So, I've spent most of my working life getting up by 6.30, so as to have some time to wake up, then get going to my work. Whenever I can, I go to bed later, get up later, and always feel more refreshed and fuller of energy this way.

  50. philip Says:

    I work 9:30pm – 07:30pm most nights anyway and i find that after a while my body insists it returns to some form of normality despite what what i may do.. mamels are not naturally nocturnal with some exceptions in the species and to try to turn this around may seem exciting at first but who would pick up the tab in health and traffic collision terms from over tired workers or owners?

    It may be possible to re-educate a dog to become a vegetarian but when the chips are down and it gets hungry then it sure wont accept the small carrot in your hand.. it would take off your hand instead and keep the rest of you alive for later.

    There is of course nothing new under the sun and given the lenght if time that Homo Sapiens have been roaming the globe i dare say the notion or indeed demands for night working have been arranged in society at some point when it becomes expedient ro do so and no doubt the idea would always be sexed up and marketed as a new wave social revolution. so if it its really the best way forward in terms of life times habit then why has it never caught on before?

  51. Anne Egros Says:

    Hi Caterina early bird or late owl may not be the issue but the hours and quality of sleep may be. A study was done on 4188 employees at four US corporations who were surveyed about sleep patterns and completed the Work Limitations Questionnaire.
    Sleep disturbances contribute to decreased employee productivity at a high cost to employers.
    http://www.ncbi.nlm.nih.gov/pubmed/20042880

  52. catarinaalexon Says:

    Glad we agreee Dev.

  53. DaBora Lovitt Says:

    Medically speaking the human body requires six hours of sleep. Normal activites allows the brain activate on reverse body alertness. True it is considered for todays views as a "night owl."

  54. catarinaalexon Says:

    That's true as far as I'm concerned DaBora. However what hours you sleep is another matter. If you sleep between 02.00 hours and 08.00 hours is fine provided you don't need to get up at say, 06.00 hours. That's why flexible hours is a good idea in order to raise productivity.

  55. Geek Girl Says:

    I think if you try hard enough you can find a study that supports whatever point of view you may have. I think that linking intelligence to whether you are an early riser or a night owl is absurd. Productivity on the other hand may have some merit.
    My recent post Follow Geek Girl USA On Kindle

  56. thelazyslinky Says:

    What about really young children? They are definitely larks! We seem to go from being larks to being owls and then the elderly go back to being larks. Maybe this is only true for one generation but mostly young children are the ones that wake up their parents nowadays.

    Personally I'm an owl BUT with that said I get depressed every winter (S.A.D) due to low light levels and HAVE to wake up early. Other health risks seem to also be associated with not getting enough sunlight so I suppose the traditional past has left its mark.

    Interesting post! Enjoyed reading it!

  57. findingourwaynow Says:

    I tend to agree that we adapt to what is needed to make it work in our circumstances. I'm not sure that equates to higher intelligence but to necessity versus need. When one is not tied to a certain company time clock or schedule, I believe that the body rhyme that works best for the individual begins to surface. When that is allowed to happen, I can't help but believe that the individual is far more productive. Just my thoughts. :-)
    My recent post Taking The Mystery Out Of Wine Tasting: Wine

  58. becc03 Says:

    I have been both a night owl – most of my life – and an early riser (thanks to my son). It would seem I sit in the adaptable group.
    It is interesting, there is a school in Sydney doing new hours (I think starting at 7am and finishing earlier). I wonder if there will be another school willing to do later hours? It would be interesting to see if it makes any difference at all.
    My recent post I laid myself on the line…

  59. catarinaalexon Says:

    As I wrote in the article Cheryl, of course it has nothing to do with intelligence. But according to the research carried out it has:-) It's all about what rhythm suits your body.

  60. catarinaalexon Says:

    Maybe Sophia. There are more owls in this world than larks. Presumably the research has looked at how the majority of us perform best in the years when we are most productive.

  61. catarinaalexon Says:

    Agree with you Susan.

  62. catarinaalexon Says:

    Not only schools but all kinds of companies and institutions all over the world love to start earlier and earlier. All so that people can have more spare time after school/work. But I do believe things will change in that respect because more and more people have to set up their own company. Most likely that will have an impact on when owls, who represent a larger portion of mankind, set their own hours.

  63. thebizparlor Says:

    I do not believe one or the other are more intelligent, however each one of us have a different biological clock and if we are able to understand ours and respect our team's, we might get much better results- not as a group, but individually. Flexible schedules might work better if we can identify the individual trends and allow our team members to work during their most productive time.
    My recent post Social media: are you choosing the right channel?

  64. thebizparlor Says:

    I absolutely respect your point of view and your response to my comment, even not agreeing with it – the definition of "biological clock" is much broader that the one you chose to publish.
    But I really appreciate your point and enjoyed reading your article.

  65. Ms. Blase Says:

    As a night owl, I would love to pat myself on the back and agree with those but I'll take another direction. My son, a teenager that I would count as very intelligent, goes to bed later and later. He seems to have more going on intellectually and is more introspective than the average teen therefore, less concerned with wasting his hours with sleep. I work during the day but am pushing toward self employment so regarding not feeling the "pressure to sleep" or flexibility with hours, I would have to agree but say that this is "drive" oriented.

  66. catarinaalexon Says:

    Absolutely. We all have a different perception of reality. Who's right and who's wrong?:-)

  67. catarinaalexon Says:

    Glad we agree "Ms Blase".

  68. mkslagel Says:

    The day that I don't have to get up early for work and can work late into the evening will be the best day of my life. (If I ever see it in my lifetime). I have a hard time waking up in the morning when I don't have anything immediately to do. Even on days that I have to wake up to go to work I have a hard time convincing myself to get out of bed before last minute rushing to get ready. But later that evening, I can lay in my bed well into the wee hours of the night– 4 a.m./5 a.m. and read. These are my best times and my favorite times.
    My recent post Reasons You Need Good Credit Besides Loans

  69. Kelly Wade Says:

    I think there are a number of different factors that play into when people have more energy. I think it would be beneficial to a lot of people (especially the younger generations) to have more flexible working hours, but the status quo says that 9-5 is optimal and if anything were to change it would most likely take a long time.
    My recent post 3 Most Important Aspects to Healthy Living

  70. JeriWB Says:

    I was always more of night owl until I finished graduate school. When I got my first teaching job, I had to become a morning person. Even without being in the classroom anymore, I still wake up close to 6 am every morning, and I don't go to bed until midnight. I do now that I am more creative later in the day, but if I don't work on my novel first thing in the morning, I won't get to it that day. I guess like all things, we adapt to the situation at hand. As a teacher I can say it got old having kids come into class who repeatedly stayed up until 4 am on their computers and cell phones. Not too intelligent, I'd say.
    My recent post On My Mind: How often do you quit reading a book?

  71. JeriWB Says:

    I was always more of night owl until I finished graduate school. When I got my first teaching job, I had to become a morning person. Even without being in the classroom anymore, I still wake up close to 6 am every morning, and I don't go to bed until midnight. I do now that I am more creative later in the day, but if I don't work on my novel first thing in the morning, I won't get to it that day. I guess like all things, we adapt to the situation at hand. As a teacher I can say it got old having kids come into class who repeatedly stayed up until 4 am on their computers and cell phones. Not too intelligent, I'd say.
    My recent post On My Mind: How often do you quit reading a book?

  72. JeriWB Says:

    I was always more of night owl until I finished graduate school. When I got my first teaching job, I had to become a morning person. Even without being in the classroom anymore, I still wake up close to 6 am every morning, and I don't go to bed until midnight. I do now that I am more creative later in the day, but if I don't work on my novel first thing in the morning, I won't get to it that day. I guess like all things, we adapt to the situation at hand. As a teacher I can say it got old having kids come into class who repeatedly stayed up until 4 am on their computers and cell phones. Not too intelligent, I'd say.
    My recent post On My Mind: How often do you quit reading a book?

  73. Dr Prakash Moghe Says:

    Hi Caterina,
    Like all psychological terms, Intelligence is a complex construct. Everyone has her own notion and it also keeps changing with times. I recollect in my childhood, early 1960s putting blanket / wrapping a burnt hand was the norm and touching water was a taboo. Now chilling the burnt part is considered / taught as good.
    Like wise, getting up early or late has ceased to have any meaning Caterina as social networking / out sourcing has made it possible to think of working at hours of will. I am usually up by 5 am in India, it is half day at New Zealand. The problem is with those people who find reasons to grudge, passing the buck to politicians, recession, weather, depression etc. In every time, every kind of person has made success, it depends upon us to which we camp we wish to belong – the users of opportunities or being used by the opportunists

  74. Leora Says:

    I am definitely an early bird. Some of the entrepreneurial types I knew years ago were night owls. My kids try to change me, but they are just much more awake than I am at 9 pm. I will just learn to live with who I am! I'm no Thomas Alva Edison, who got by on little sleep. I get a ton done early in the morning.

  75. catarinaalexon Says:

    Join the. club MK. That's why setting our own hours are so important. We get really productive and the results are great

  76. catarinaalexon Says:

    Jeri, don't you think you are part of the 70% of mankind that can adapt to either the hours of a morning person or an evening person

  77. catarinaalexon Says:

    Leora you are lucky to be an early bird since society evolves around getting up early in the morning.

  78. catarinaalexon Says:

    Thank you for taking the time to giving us your opinion, Prakash.

  79. catarinaalexon Says:

    Kelly in many countries people start working at 8 in the morning. And in some at 10. And don't forget about all business owners that adapt to their bodies rhythm and get up at 8 instead of 6. It makes a huge difference. For morning people sleeping late is not an option since they get best results in the morning.

  80. catarinaalexon Says:

    Well Christian, maybe you have taken it a step too far? Am an evening person but I definitely could not live the way you do.

  81. A.K.Andrew Says:

    I think it's as much to do with the rhythms we get into in our lives than anything else. Young people have always preferred to stay up late than get up early irregardless of generation. Thank goodness flexitime is more prevalent now tho which is much more suited to modern living. Thanks for post Catarina.
    My recent post Reading Fever

  82. catarinaalexon Says:

    Glad we agree AK. However, for those of us who are evening people, we are always tired if we have to get up early. We will not, like most pensioners, wake up early:-)

  83. Lubna Says:

    I tend to sleep at around 2 or 3 am and wake up anytime between 8.30 to 9.30 am, depending on how early my first meeting is and how 'early' I've gone to bed. I do need six hours of sleep. In fact one when I was a student and exams were slated at 8am, I actually had to reoriented my sleeping habits. I think my deepest sleep is around 7 am.
    This post sure has me thinking. I am a night owl and I haven't seen the sun rise in years.

  84. thibaut Says:

    Could it be that night owls are better thinkers and early birds are better executers.
    You need both legs to run. So make sure you have both in your teams / businesses!

  85. catarinaalexon Says:

    Sounds a bit like me Lubna. Prefer to never have to get up before 8 a.m. But needless to say, sometimes that can't be avoided.

  86. catarinaalexon Says:

    If that's the case thibaut, I would hate to chose between being an early bird or a night owl:-)

  87. Kerry Thompson Says:

    There are seven in our family. I am up at 4:30 am and I start to get cranky at 10:30. My wife gets up about 10:00 AM my son and daughter are night owls and enjoy working the (afternoon shift) at Walt Disney World. The rest of the Kids have adapted to the jobs that they perform. Once the passion on an idea, project or task is at full tilt, the 24 hour clock comes into play. Yes Japanese are big on productivity and efficiency but what kind? There are just as many kinds of productivity as there are careers. The automotive global industry requires me to be alert around the clock when Japan, India or Germany calls I must be alert and productive. What time will we be productive and fruitful in the future? Depends on the need. The global clock is in play and more important than ever before. As an engineer I get inspiration 24 hrs a day.

  88. catarinaalexon Says:

    True, Kerry. However, your natural body clock has an impact on what your ideal hours are. That however doesn't mean you cannot be productive at hours that don't suit your body, you are just less productive. But less productive compared to what?

  89. Jody Kristina Says:

    Great article, I am a night owl. I've been working nights for about 6 years. I've always said I function better in the evening hours, I just feel my brain is more awake and well-rested. I am way more prone to confusion in the early mornings. Haha. Nice to see some articles supporting that. :)
    My recent post Is technology rupturing society?

  90. catarinaalexon Says:

    Join the club, Jody Kristina.

  91. blogiart22 Says:

    Tell the truth I totally agree that night owls are more intelligent. There is some physiological study that tells about the brain activity that boosts only in the middle of the day. And when you use this moment in a right way for yourself you get more advantages. I'm absolutely owl))) In life and by the spirit) thanks for the interesting post!

  92. catarinaalexon Says:

    My pleasure. Interesting about the physiological study you mention.

  93. Dave McAdams Says:

    I would consider this study invalid due to the fact that the majority of teenagers would be considered night owls. Because more teens belong to that group, it is obviously more likely that an intelligent teenager will be a night owl than an early bird. There are likely many night owls who are unsuccessful and of low intelligence. I would have to assume that intelligence does not directly relate to sleep habits because they CAN be changed over one's lifetime. Sleep habits are simply a preference, and adapting to the night owl sleep schedule will not make you more intelligent.

  94. catarinaalexon Says:

    OK Dave, we have taken note that you consider the two studies invalid. Have you contacted the University of Liege and Satoshi Kanazawa to let them know your opinion. Am sure they would be intrested in hearing your points of view.

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