On a 5 hr bike ride your body is going to go into a similar state as intermittent fasting with all your glycogen being burned off. Similar to fasting this frees up energy and allows the garbage in your system to be burned off.
How exercise in old age prevents the immune system from declining
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Re: How exercise in old age prevents the immune system from declining
#22On a 5 hr bike ride your body is going to go into a similar state as intermittent fasting with all your glycogen being burned off. Similar to fasting this frees up energy and allows the garbage in your system to be burned off.
> garbage in your system What precisely is this?
Re: How exercise in old age prevents the immune system from declining
#23On a 5 hr bike ride your body is going to go into a similar state as intermittent fasting with all your glycogen being burned off. Similar to fasting this frees up energy and allows the garbage in your system to be burned off.
I do a ~24 hour fast weekly, and a LOT of sites go into this "burning off garbage" or "toxin cleaning" rhetoric which always puts me in "bullshit warning" mode. Is there actual science behind these claims?
Still seems a little too "high level" to actually believe though. In any case, I still do IF by skipping breakfast, mostly because I'm lazy, and after fasting for so many years hunger doesn't really bother me that much.
Re: How exercise in old age prevents the immune system from declining
#24Given that this study focuses on declining naive T cell production and thymic tissue loss, it is interesting to look at another recent study that suggests these losses are the dominant cause of increased cancer rates with age. https://doi.org/10.1073/pnas.1714478115 T cells develop from hematopoietic stem cells as part of the lymphoid lineage and have the ability to detect foreign antigens and neoantigens arising fro…
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Our model outperforms the power law model"
Interesting, since cancer "rates" (age-specific incidence) for many cancers peak at 60-90 years old. This paper looks like they cut off the data at 85 years, ignore the peaks during youth, and aggregate the data in such a way (eg colon and rectum grouped together) to force a power law fit.
EDIT:
Also, they just say "data from SEER". What years did they use, inclusion criteria, etc?
Re: How exercise in old age prevents the immune system from declining
#25Re: How exercise in old age prevents the immune system from declining
#26Earlier quoted context omitted.
This is a great way to put it. I've been exercising so long that it is my normal. Not exercising for more than two days in a row and I start to feel weird/not healthy. This has led me to end up on the treadmill at 10pm or 5am. When it becomes your normal it is just like breathing or eating.
Same to me, but I was more active when I was living in a warm country. Now I am living in a mildly cold winter country, and struggling to go out out to walk/run because of the cold. 3 weeks and I already feeling less productive and healthy.
Re: How exercise in old age prevents the immune system from declining
#27Saying exercise prevents decline normalizes being sedentary. I prefer considering exercise normal and saying its lack accelerates decline. Anyone is free to call normal what they want, but I find my way leads me to live more healthy.
Of course, "running" can be substituted with any other exercise
Re: How exercise in old age prevents the immune system from declining
#28On a 5 hr bike ride your body is going to go into a similar state as intermittent fasting with all your glycogen being burned off. Similar to fasting this frees up energy and allows the garbage in your system to be burned off.
I do a ~24 hour fast weekly, and a LOT of sites go into this "burning off garbage" or "toxin cleaning" rhetoric which always puts me in "bullshit warning" mode. Is there actual science behind these claims?
Re: How exercise in old age prevents the immune system from declining
#29Earlier quoted context omitted.
Same to me, but I was more active when I was living in a warm country. Now I am living in a mildly cold winter country, and struggling to go out out to walk/run because of the cold. 3 weeks and I already feeling less productive and healthy.
Running in the cold is great. I run outside until it gets below -20 deg C. Some thermal tights and a few layers on top is all you need. It took me quite a few years to finally just give it a try and now I actually prefer running in the winter vs summer.
I haven't tried the breathing masks though I probably should since I have asthma and breathing in the cold makes it worse.
Re: How exercise in old age prevents the immune system from declining
#30Saying exercise prevents decline normalizes being sedentary. I prefer considering exercise normal and saying its lack accelerates decline. Anyone is free to call normal what they want, but I find my way leads me to live more healthy.