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How exercise in old age prevents the immune system from declining

bbc.com

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Re: How exercise in old age prevents the immune system from declining

#61

Post by DoreenMichele »

said wrote: post #18

I have a concern. A few months ago, a widely publicized study[1] indicated that moderate-to-large amounts of exercise caused a buildup of plaque in the hearts of middle-aged white men. This correlation was not seen in any women, nor was it seen in black men. Unfortunately, this study included no Indian nor Southeast Asian people. I've seen unrelated studies indicating similar health outcomes for white men and Indian…

You probably eat different from most white men. If you are concerned, you could look for studies that correlate dietary choices or other factors to such calcification.

Exercise is just one factor here and does not operate in isolation.

Re: How exercise in old age prevents the immune system from declining

#62

Post by cowpig »

said wrote: post #18

I have a concern. A few months ago, a widely publicized study[1] indicated that moderate-to-large amounts of exercise caused a buildup of plaque in the hearts of middle-aged white men. This correlation was not seen in any women, nor was it seen in black men. Unfortunately, this study included no Indian nor Southeast Asian people. I've seen unrelated studies indicating similar health outcomes for white men and Indian…

Feeling concerned about newly discovered correlations isn't going to help you live longer.

Maybe this will help you: http://tylervigen.com/spurious-correlations

Re: How exercise in old age prevents the immune system from declining

#63

Post by hazeii »

_0w8t wrote: post #58
hazeii wrote: post #43

Earlier quoted context omitted.

The 'detox' side of it is very likely garbage (but a great way to sell); on the other hand, 5-hour bike rides without fuel will deplete your glycogen stores and there'll come a point where the differnce becomes obvious (see 'bonk-training'). A 24-hour fast is different; your body will burn fat at sufficient rate to avoid glycogen depletion (it's pretty simple; the harder you exercise the less energy comes from fat an…

In one of his articles Ray Cronise gave some numbers that even with light jogging or even fast walking for fuel body uses carbohydrates exclusively. So cardio exercises are a bad way to loose weight. They made people hungry. And as people eat all the fat from the food is stored as body fat and may not be burned until the next exercise.

That's pretty much it; although at higher intensities the calories per unit time is higher, the higher the intensity the more comes from short-term stores (glycogen) than from long-term (fat).

The numbers suggest 60 to 70 per cent of max heartrate (which is pretty easy) is the sweet spot for general fitness and fat burning (i.e. weight loss). For improved endurance, spend a lot of time in that zone; for improved performance spend shorter periods (well) above it.

Re: How exercise in old age prevents the immune system from declining

#64

Post by trendia »

said wrote: post #18

I have a concern. A few months ago, a widely publicized study[1] indicated that moderate-to-large amounts of exercise caused a buildup of plaque in the hearts of middle-aged white men. This correlation was not seen in any women, nor was it seen in black men. Unfortunately, this study included no Indian nor Southeast Asian people. I've seen unrelated studies indicating similar health outcomes for white men and Indian…

There was another study that found that thinner people and athletes ate more sugar, on average, than heavier or non-athletic people.

Since high sugar levels cause plaque buildup, perhaps that explains the correlation?

Re: How exercise in old age prevents the immune system from declining

#65

Post by RBerenguel »

Pete_D wrote: post #54
RBerenguel wrote: post #28

Earlier quoted context omitted.

Fat tissue is a collector of some kinds of toxins (don't remember exactly which now) and some heavy metals (heh). Going into fat burning actually releases these into your system (which should be bad, though)

Are you thinking of https://en.wikipedia.org/wiki/Persistent_organic_pollutant ?

Yup that was it, thanks!

Re: How exercise in old age prevents the immune system from declining

#66

Post by Moru »

CompelTechnic wrote: post #32
Moru wrote: post #29

Earlier quoted context omitted.

There are masks you can wear that makes it easier to breath the cold air for running when it's even colder. I guess it heats the air a bit. I like walking in the cold, just have to dress for it and not overdo it so you overheat in your nice warm clothes :-) I haven't tried the breathing masks though I probably should since I have asthma and breathing in the cold makes it worse.

Are they the sort of mask that makes you look like subzero from Mortal Kombat? I've been thinking about getting one.

I dont know about those, the one I saw looked like an asthma inhalator I think. But this was long ago.

Re: How exercise in old age prevents the immune system from declining

#67

Post by wukerplank »

nmeofthestate wrote: post #42
wukerplank wrote: post #4

Earlier quoted context omitted.

Does it matter that much? Just be active for as long as possible and reap the benefits of fit muscles and a stronger heart. Purely anecdotal: My grandfather is nearing 90 and still jumps on his indoor bike every day. Last winter he fell (due to ice) and got away with a few bruises. For other people his age this kind of fall could have meant a broken hip. He had two heart attacks when he was around 60 and a life long…

Of course it matters. If the old cyclists are just genetically superior, then prescribing 100 mile bike rides to frail old people might be damaging, rather than transforming them into disease-resistant superhumans.

Why would you prescribe a 100 mile ride to an old person?

My point was that living a long and fairly healthy life is a day to day project, not a pill you take once you hit 70.

Re: How exercise in old age prevents the immune system from declining

#68

Post by wukerplank »

OldSchoolJohnny wrote: post #40
wukerplank wrote: post #4

Earlier quoted context omitted.

Does it matter that much? Just be active for as long as possible and reap the benefits of fit muscles and a stronger heart. Purely anecdotal: My grandfather is nearing 90 and still jumps on his indoor bike every day. Last winter he fell (due to ice) and got away with a few bruises. For other people his age this kind of fall could have meant a broken hip. He had two heart attacks when he was around 60 and a life long…

Does it matter? Of course logic and keeping it real matters unless you want to be ruled by superstition all your life.

I don't think the positive effects daily cardio are superstition.
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