Quanto dovresti esercitare?

Le autorità di idoneità fisica sembrano essere cadute nella stessa trappola delle autorità di nutrizione, raccomandando ciò che pensano possa essere realizzabile, piuttosto che semplicemente informando noi cosa dice la scienza e farci prendere una decisione.

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La maggior parte dei contenuti nel mio libro How Not to Die (http://nutritionfacts.org/video/book-trailer-for-how-not-to-die/) è arrivato dalla mia ricerca sui video, ma in realtà questo video è nato dal libro. Volevo includere l'esercizio nella mia lista di dozzine giornaliere, ma dovevo fare questa ricerca per vedere quale fosse la migliore “dimensione della porzione”.
Vorrei che qualcuno avviasse una sorta di sito Web FitnessFacts.org da recensire la letteratura sugli esercizi. Ho il cervello pieno di cose nutrizionali (anche se ci sono così tante cose buone per cui non ho tempo per quelle che potrebbero esserci 10 altri siti che trattano solo di scienze nutrizionali!).

Per ulteriori informazioni su tutto ciò che l'esercizio può fare per il nostro corpo e la nostra mente, vedere:
• Esercizio vs. droghe per la depressione (http://nutritionfacts.org/video/exercise-vs-drugs-for-depression )
• Trattare l'ADHD senza stimolanti (http://nutritionfacts.org/video/Treating -ADHD-senza-stimolanti)
• Inversione del declino cognitivo (
http://nutritionfacts .org/video/Reversing-Cognitive-Decline)
• Esercizio fisico e cancro al seno (http://nutritionfacts.org/video/Exercise-and-Breast-Cancer)
• Vita più lunga a poca distanza a piedi (http://nutritionfacts.org/video/Exercise-and-Breast-Cancer)

Alcuni consigli per massimizzare i benefici:
• Miglioramento del recupero atletico senza compromettere l'adattamento (http://nutritionfacts.org/video/enhanced-athletic-recovery-without-undermining -adaptation/)
• Le diete paleo possono negare i benefici dell'esercizio (http ://nutritionfacts.org/video/Paleo-Diets-May-Negate-Benefits-of-Exercise)
• Preservare l'immunità degli atleti con la clorella (http://nutritionfacts.org/video/preserving-athlete-immunity-with-chlorella)
• Prevenire lo stress ossidativo indotto dall'esercizio con il crescione (http://nutritionfacts.org/video/preventing-exercise-indotto -stress-ossidativo-con-crescione/)
• Barbabietole intere contro succo per migliorare le prestazioni atletiche (http://nutritionfacts.org/video/whole-beets-vs-juice-for-improving-athletic-performance)

Hai una domanda su questo video? Lascialo nella sezione commenti su http://nutritionfacts.org/video/how-much-should-you-exercise e qualcuno del team di NutritionFacts.org cercherà di rispondere.

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100 Risposte a “Quanto dovresti esercitare?”

  1. Excellent work Mr. Doctor ! You'd deserve Nobel prize for peace – for all the effort you always put into world health and well being !!!

  2. You know Vladimir Putin swims 2 hours every day. In Russia… Like you can't even talk me into getting a cold shower let alone in a freezing lake in Russia… Dayum.

  3. Humans are built to move and be active not sit down for hours a day. When we sit our bodies metabolism slows to an almost halt and we stop burning fat efficiently. I run 70 miles a week and im perfectly healthy, to all those "too much is dangerous" couch potatoes.

  4. There is a threshold for Excercise, too much Excercise creates oxidative stress, if you plot Excercise to nitric oxide release in blood vessels, moderate Excercise had highest nitric oxide promotion, more nitric oxide is a indication of good arterial health, which is an indication of good health

  5. Wow, nice video! Can anyone tell me, what kind of software to use to make these effects like in the video? They were really impressive.

  6. I have to challenge if those who exercised more, simply had more time to. Meaning, more free time, a less stressful life, less work hours, time stuck in traffic, commuting, etc. Sure diet and exercise are lifestyle choices. But less free time, longer work hours, etc., often is not. Putting a treadmill in my office, not an option. Still, I appreciate the science.

  7. I was disappointed to see in chapter 2 of How Not To Die you rate animal products as a 'yellow light' rather than red after a whole chapter of explaining that animal products contribute to the 15 leading killers. Isn't it a little hypocritical to make the finishing point of this video then?

  8. I run about 4-5 hours per week and walk another 1-2 on recovery days. Never felt better. A year ago I did pretty much nothing, sitting at my desk, weighing 25 pounds more than I do now…

  9. But I hate walking.Suppose I extend my lifespan 5 years by walking 2 hours a day from age 30 to age 70, but what would be the use, if I spend the same amount of time on walking (5 years * 365 days * 16 awaking hours == 40 years * 365 days * 2 walking g hours)? In either case, the amount of time I can spend on doing what I actually want to do would be the same.

  10. Bottom Line: Why does Dr Greger and Dr McDougal, who both promote vegan living, both look so unhealthy, old, frail, weak, and sad? I don't mean this as a subjective view against veganism, I mean this question as a rational and objective view of their face and bodies. No offense, Dr Greger, or Dr McDougal!

  11. Once a day is fine, but twice is better 🙂 and if you can, do it outside in the sun get that Vitamin D.
    Two for the price of one and much better than supplement form getting it from source itself 😀

  12. So many factors not covered here such as intensity and various forms of exercise like muscle building vs longer endurance stuff. I sometimes think ultra endurance athletes may be decreasing lifespan with the load they put on themselves, could be wrong though.

  13. Let's not forget, that exercise doesn't necessarily mean going to the gym. It's also walking to buy groceries instead of using your car or going by bike if it's too far to walk to the next store, using stairs instead of elevators, taking breaks from sitting in the office and walking a little (maybe even walk every time you're on the phone if that is possible at your job). Little things like this do add up in the long run. Also how about doing some pushups before going in the shower, some squats during commercial breaks while watching tv, leg lifts while brushing your teeth etc. I don't have time to go the gym for 90 minutes, but nearly everyone has 5 minutes here and 5 minutes there to do a little something throughout the day.

  14. Do the times vary based on the type an d intensity of exercise? Running, walking, cycling, and swimming? Could you provide more info on that if there is? Thanks for all the great work!

  15. In the study, the amount of exercise, was this in addition to a moderate activity lifestyle? Or were these people sedentary otherwise? Just wondering how this data changes if you sit at a desk for 8 hours a day. Thanks!

  16. I'd like to see a study on just plant based diets and exercise. Does exercise have much of an effect on people that are eating really healthy plant based vs people that aren't exercising but are still eating super healthy plant based. I don't doubt that exercise has a positive effect on people eating like crap, but blue zone people don't do any strenuous exercise and they live longer than anyone. They do, however, eat mostly plant based.

  17. I exercise for 90 minutes 5 times a week and I would not have it any other way.I feel amazing when I am doing it and amazing for hours afterwards.If I don't exercise for a few days I get tired and irritable and I can feel myself starting to seize up.

  18. It's infuriating that those making federal guidelines treat the public with kid gloves by advising the population to eat &/or exercise in a manner that those writing the guidelines presume the public can 'handle' or find 'doable'. Wouldn't disclosing the most optimal, honest facts be more ethical, therefore allowing for people to make the most informed decisions about their health?
    The work you put into educating the public by providing easily accessible resources to the research you decipher, cross-reference & share is invaluable, Dr. Greger! Thank you so much.

  19. I guess that's a big benefit to being on such a big campus. Everyone at my college has to either bike or walk a along distance between classes

  20. Went ahead and graphed all the data for "moderate to vigorous" "moderate" and minimal "(MET)" MorE Than sitting quietly?
    Trend.. Forecast.. Log..
    Where does the forecast meet your 5% chance of mortality from accidental injury?
    For vigorous activity, it's 3.75hrs/day. For moderate activity, it's 6.08 hrs/day. The MET activity would take 16 hours a day or all of your waking hours being active. It's almost like we were built to move or something.

  21. I'm guessing that if you follow a healthy vegan diet you can probably get away with a lot less exercise, since exericse seems to mostly confer cardiovascular benefits.

  22. Exercice is just a waste of perfectly good human energy; just move naturally and with a constant purpose and you will be fine. Plant trees, walk or run to gun someplace, build stuff, garden, carry your child…

  23. i use my tread mill for walking 90 minutes a day….in order to avoid boredom ..i watch netflix…while on the machine…works for me 🙂

  24. Love you Dr. Gregers, your voice, your manner of speaking so comforting and down to earth your a cutie👍☺️😍😁🙋😘🌸🥑🥂💃🍇🍉🍌🍒🍏🍎🍆🍅🌰🥕🥝🍓🍍🌽🥜🍋🍈🍊🥒🍠🥔🍌🦋

  25. I walk about ninety minutes a day. During summer time I walk 120 minutes or more. I find myself in a very good shape. As I can climb stairs without losing my breath. Keep in mind I have not been to the gym so often the past year or so.

  26. As always, very interesting. It should be pointed out though that your definition of exercise is particular. If you take running, for instance, the recommendations of 120'/week appear in line with what most sport physicians would advocate for as a maximum for the average person. They usually refer to studies showing that endurance training itself may cause inflammation (in your arteries?) and increase the risk of heart attacks (during training). Hence three moderate trainings a week would represent the point of diminishing returns. Would be interesting to hear your take on this!

  27. I believe there is value in not only exercising, but if possible, try to work up a sweat every so often. This helps in detoxifying the body.

  28. Great to hear that more exercise is beneficial.  "The Food," still seems to be paramount, as has already been mentioned.  Dr. Esselstyn did a video making a point that the Okinawan blue zoners don't exercise much; but they do eat well and have good social connections.

  29. This is so true! When I was living in Florence I used to hike for two hours up in the hills and that is when I realized that they weren’t telling us the truth about how much exercise we needed back in the States. With those 2 hour hikes I could eat as much as I wanted and keep getting slimmer although I wasn’t trying to. I think we do need at least a couple of hours a day so the doctor’s recommendations are right on target.

  30. What about weightlifting?
    I try to get 10k steps every day, sometimes I hit it through walking at work and so forth, other times I have to add in a 20-30 minute walk to get there. I know more walking is better when walking is all you are doing, but it's not all I'm doing. I strength train for about 1.5 hours 5x a week and try to get in an extra 10-20 minutes of biking or jogging on the two "rest days" so does that make the 10k steps optimal, or should I still try to aim higher?

  31. Everyone should have 45-60min spare time a day to have a walk.
    Those minutes a day could add years to your lifespan. There is no need to spend hours at the gym. Unless you like that, then good for you.
    Everyone can spare that time. And everyone should. But also remember this… you can not exercise your way out of a bad diet.

  32. A-men! Been a walker since university, due to what I thought then was the ridilcous walk to and around campus (I think 4-5 miles daily). It's an activity mostly everyone can do. Even when I was in chronic pain/hip/spine issues I could walk daily. 4mph is fast though – you need to work up to that – otherwise you'll get issues.

    One thing that's also needed is resistence. Reduces the risk of injury/fractures in later life – which keeps you mobile. You gotta look after your body, in order to let it exercise. That doesn't mean lifting big weights, but functional things or making sure you carry groceries home etc.

    Treadmills for me are extremely unnatural. Your body is designed to walk in real space and get sensory input from your eyes and feet and odd shapes you walk on. If that's all you can do, especially due to work or pollution then I get it.

  33. I am pretty much always walking when I am at work, and can easily exceed 12 miles of walking at work according to a fitness tracker I barrowed for a couple of weeks.

  34. Pity we don’t know at what point the benefits of exercise start plateauing or diminishing. So that we have a clear idea of what we should be aiming for.

  35. There are a few of these keto gurus who have begun to share the idea that endurance training is bad for you. I’m not sure what the connection to keto is except maybe they’re not getting enough ketones to their brains while they’re supposedly in ketosis. Anyway, some elite runners can develop heart valve issues, but your when it comes to your average joe runner, the only studies I could find said running is all good, and that running ruins your knees is largely a myth. I have been running for nearly 50 years and my knees are fine.

  36. Part of this is an infrastructure problem too. Many people live in places where there are no real alternatives to driving to get around. If you live in a walkable bike friendly city with good public transport, it's easy to get in 30min of waking/biking , just from going to work/school, going shopping and just doing your daily tasks.

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