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Chronobiology – How Circadian Rhythms Can Control Your Health and Weight


  1. Jorge Fruit
    Jorge Fruit January 15, 2020


  2. B12 blaze it vegan
    B12 blaze it vegan January 15, 2020

    Tell me how many disease i got from never sleeping already

  3. TheFrankissofine
    TheFrankissofine January 15, 2020

    Chronobiology is my new love!

  4. Don Beleef
    Don Beleef January 15, 2020

    I've never met a doctor who I enjoyed watching until your vids. Thank you!

    INFO REMEDIES January 15, 2020

    Hello! New subscriber and youtuber here from Philippines. Lots of learning from this video.

    Click here my profile to visit my videos. Thank you.

  6. paulaaquino
    paulaaquino January 15, 2020

    My insomnia is what's going to kill me, I know it….

  7. Eliza Wolf
    Eliza Wolf January 15, 2020

    Thank you for taking the time to educate us properly and making it un-biased.

  8. Tobirama
    Tobirama January 15, 2020

    Nothing beats a good nights sleep 😴

  9. Paige Proffitt
    Paige Proffitt January 15, 2020


  10. Es lo que hay
    Es lo que hay January 15, 2020

    A bit late, but I love the intro!

  11. Abhay Bhatt
    Abhay Bhatt January 15, 2020

    Your face and body movement are a distraction: Please revert back to old design.

  12. Eelke Aptroot
    Eelke Aptroot January 15, 2020

    As a former substance abuser it had occured to me that starting with a substance early in the morning has the biggest effect, so I totally believe these theories.

  13. SALVATl0N
    SALVATl0N January 15, 2020

    How can they rule out eating calories closer to your most inactive time of the day?

  14. JK
    JK January 15, 2020

    you promote CHEMOTHERAPY ??? – you are a paid shill – may God have mercy on your soul ….

    TATTOEDWOMAN January 15, 2020

    OMG 🙄will you stop ?Why can't you ever finish a video! Why do you always have to say," WE'LL FIND OUT NEXT"

  16. d36somethin
    d36somethin January 15, 2020


  17. ujean56
    ujean56 January 15, 2020

    But wait, I'm pretty sure I saw a YouTube video that "proves" we came from outer space and we were sent to earth by our ancient forebears. I think it was by the Mormons.

  18. Jack Vesper
    Jack Vesper January 15, 2020

    If I were ever sworn into any office, I’d swear on How Not to Die.

  19. Brucking Filliant
    Brucking Filliant January 15, 2020

    I hate to say it, Dr. Gregor, but having a person onscreen along with the papers is really distracting. I much prefer the old format. Regardless, keep up the excellent work!

  20. thechosencomment
    thechosencomment January 15, 2020

    What time does the live Q&A start on the 23rd in PSt?

  21. King Fish
    King Fish January 15, 2020

    What time is it?

  22. Brucking Filliant
    Brucking Filliant January 15, 2020

    I'm going to reiterate my rule of thumb here, as Dr. Gregor provided the evidence to back it up: eat for what you're doing in the next ~4 hours. Going to work? Going to work out? Eat big. Going to sleep? Eat small.

    The hardest part, in my experience, is eating a small dinner at a restaurant while everyone else at the table is piling on.

  23. January 15, 2020

    Wasn’t that chemo data wild? Amazing! And if you are on blood pressure medications, please share this video with your physician to ask to see if your timing is optimized.

  24. Xenia Aidonopoulou
    Xenia Aidonopoulou January 15, 2020

    amazing… so interesting… Also, personally, I LOVE the new format… I like it much better than the old one, feels more personal and you are not distracting at all Dr Greger… You are animated and alive, just like you need to be… ♥

  25. William Cooper
    William Cooper January 15, 2020

    How does this all tie in with intermittent fasting? Am I waisting my time if my food window is in the evening, ie fast all day and have my first meal at 5pm and last meal at 9pm? The reason for late eating is down to work and when the family is all together.

  26. Dean Peterson
    Dean Peterson January 15, 2020

    2020 and I'm here – alive and kicking – ty sir!

  27. Bill Ding the constructor
    Bill Ding the constructor January 15, 2020

    Got to stop leaving us hanging, brah. Gets me anxious, then I keep voting with my dollar for my pharamceuticals!

  28. Imgay Asheck
    Imgay Asheck January 15, 2020

    the long awaited chronobiology video

  29. Doug Vegan Paradise Builder
    Doug Vegan Paradise Builder January 15, 2020

    Dr. Greger should try presenting some new info over a breakbeat. I bet he would rock!

  30. Mike Skylark
    Mike Skylark January 15, 2020

    Interesting and important stuff

  31. Sowiso4
    Sowiso4 January 15, 2020

    02:00 A study about self-poisoning ? Is it just me wondering why so many people ingested poisonous seeds and by which coincidence there were scientists to keep track of all study parameters ?

  32. irinairy9
    irinairy9 January 15, 2020

    I just love Dr Greger. I could listen to him speak for hours

  33. Alfredo Gonzalez
    Alfredo Gonzalez January 15, 2020

    I dont mind seekng your face but it may seem less credible seeing the person behind the magic lol

  34. michael onello
    michael onello January 15, 2020

    Super interesting, looking forward to the next segment…THX…….!
    Whole plant based foods on Instagram == mikewakethefoodup

  35. Vegan Linked
    Vegan Linked January 15, 2020

    Ego depletion, THAT'S WHAT'S WRONG WITH ME! Now that I have a name for it maybe I can control it, at least a little bit…

  36. Edwin Shoo
    Edwin Shoo January 15, 2020

    God intentionally created it in our system

  37. Eduardo Romero
    Eduardo Romero January 15, 2020

    I thought weight loss was just simply energy balance , calories in calories out?

  38. Edwin Shoo
    Edwin Shoo January 15, 2020

    Read Council on Diet… And you will be shocked how a lady called Ellen G White wrote this more than 100 years ago

  39. bignoknow
    bignoknow January 15, 2020

    Wonderful presentation as always. I will respectfully say that having you on screen and all the studies popping up did become a bit distracting and I personally am able to absorb more info when you simply do a voice over while highlighting all the great information. Perhaps doing intros and outros where you are actively on screen and then cutting away to the old format in between? Just a thought. So grateful for this channel either way of course and I learned allot today. I just kept looking at you and then trying to read but then you again before finish reading because you are quite charismatic lol.

  40. the Scoundrel
    the Scoundrel January 15, 2020

    what's the best time to sleep according to the circadian rhythms and what are the benefits?

  41. tm
    tm January 15, 2020

    Please change the intro or turn down the volume. It is annoying. Thanks.

  42. dontGMOwithme
    dontGMOwithme January 15, 2020

    Any info or comments on 1) barberry/berberine and 2)duckweed that contains b12?

  43. Rubytuby
    Rubytuby January 15, 2020

    Dr. Greger have you seen the information on the duckweed B12 plant source yet ?,,,hopefully looking forward to a video on the subject.

  44. Right Winger
    Right Winger January 15, 2020

    Amazing.. Great reviews.. Waiting to see the next vid… Where they "put it to the test".. Ty

  45. Squirtle Squirtle
    Squirtle Squirtle January 15, 2020

    Please go back to the old format of just showing the papers. Dr. Greger is sexy of course but its harder to just focus on the facts when they are harder to see than before and putting Dr. G in most of the frame does not add anything to the video. Please consider.

  46. Jamie Dunson
    Jamie Dunson January 15, 2020

    Haha Dr. Gregor talks with his hands like meeeeee!

  47. Bee Real
    Bee Real January 15, 2020

    Thanks Dr Greger !

  48. Jay Gillen
    Jay Gillen January 15, 2020

    Please look into duckweed B12.

  49. Celis Serrano
    Celis Serrano January 15, 2020

    What about us who work night shift?

  50. अष्टावक्रः ashtavakra
    अष्टावक्रः ashtavakra January 15, 2020

    petri dish… ok

  51. Lady Brooks
    Lady Brooks January 16, 2020

    As always a fountain of information. Another great video…Can't wait for part 2.

  52. Skeptical Simmy
    Skeptical Simmy January 16, 2020

    Been following about half of Dr. Greger’s diet hacks from his book How Not to Diet, and I have lost 7lbs since Xmas. I just included the black cumin, ACV and green tea, and I have managed to not eat past 7pm about 40% of the time (giving up 30+ years of habitual night eating is harder than giving up meat!). 55 pounds left to go.

  53. Man Down
    Man Down January 16, 2020

    The man's got shining skin plant-based skin.

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