# Harvard Professor: REVEALING the 7 Big LIES About Exercise, Sleep, Running, Cancer & Sugar!!!  ## About - Author: The Diary Of A CEO - Title: Harvard Professor: REVEALING the 7 Big LIES About Exercise, Sleep, Running, Cancer & Sugar!!! - Tags: #articles - URL: https://www.youtube.com/watch?v=ujRwf1HdNjk&ab_channel=TheDiaryOfACEO ## Highlights interrupted sitting is actuallymuch more healthy than non-interruptedsitting --- Howlikely you are to die it's kind of aU-shaped curve so people don't get muchsleep are in trouble but the bottom ofthat curve is pretty much always aboutseven hours so people actually do betterif they sleep seven hours rather than eight hours and yet we're told that ifyou don't sleep eight hours there'ssomething wrong right oh so you canoversleepwell yeah I mean there's also somecomplexity of this too because of coursepeople who are ill might be sleepingmore --- aging is just the clock tickingon right there's nothing we can do aboutage but senescence is the way the wayour bodies degrade as we get older and what physical activity does affectionmaybe the most important thing aboutphysical activity is that it slowssenescence especially for certain organsand systems --- themost important myth I think by far isthis idea that as you get older it'snormal to be less active and that isjust not true --- as you get older exercise becomesmore not less important for maintainingyour health --- if you go to medical school todayyou're taught that as people get oldertheir blood pressure goes up I can tellyou that's just not true it's in thewestern world where people are physically inactive and eat crap dietsthat their blood pressure tends to go up --- the problem is thatin our society we we don't valueprevention very much we may talk aboutit but we don't really put our moneywhere our mouth is --- there is noquestion that cancer rates have beenrising and that cancer rates are muchmuch more common in the western world --- there's a reason we have useit or lose it which you mentionedearlier right becausewhen we need when we increase our demandwe increase our capacity right when yougo to the gym and you work out right youbuild muscle but if you stop using thosemuscles you lose it and that's anadaptation right because you don't wantto spend extra energy on muscles you'renot using right so you want enough but not too much you want to be economicalwith muscle mass --- useit or lose it which yo --- it's absolutelydefinitively not true that runningincreases rates of knee cartilage damage --- sophysical activity actually helps promotestrong and healthy joints we used tothink that it just caused them to wearaway but actually you know like cars youknow wearing away at their tires but nowwe know that actually physical activitypromotes repair mechanisms and cartilagejust as it does in other tissues in thebody --- the most important thing is not what we callover striding you've asked any coach onthe planet they'll say overstriding isbad over strings when you throw your legout way in front of you and you land andthat leg is a stiff leg so that a stiffleg means more Force rightum and uh and um and it's harder on yourkneesum and so if you and so a good runnerlands uh with their with their shankwith their tibia vertical so their ankleis below their knee when you do that pretty much everything will work outproperly rightum it'll mean that you won't land hardon your heel it'll mean that your yourleg will be acting like an excellentspring you won't produce a lot ofbraking Forceum it's a it's a it's I to me I thinkthe most important skill in running isnot to over strideum and um so I actually so don't worryabout how you're going to hit the groundjust worry about your overstride if yousolve your overstride you're more likelyto run well --- wenever evolved to do one thing and ourbodies are too complex to benefit fromjust one thing --- we've tried tomedicalize exercise right it's like alike there's a proper dose right youknow take this pill this many milligramsthis many times per week right exerciseit doesn't work that way there is no there is no optimal dose everybody'sdifferent it depends on are you moreworried about heart disease orAlzheimer's or diabetes or depression oryou know are you previously injured areyou fit are you unfit there's it'simpossible to prescribe exercise in thiskind of medicalized way ---