I'm FAR AWAY from being any sort of expert on this topic and so maybe you can tell me whether what I've heard is right or wrong but what I've heard is that if you're one who likes to work out and lift weights then you need to make sure that you keep up a good intake of minerals while you're fasting. In short, take supplements of some sort with some water during your fast and maybe add a bit of salt to your water so as to give your muscles the chemistry they need to function properly.
At some point you do have to watch your electrolytes, basically iow salt. I eat savory pickles occasionally, which are basically zero calories, but they do give you something to munch on, plus salt. (Other people who are way more into fasting than me mix up drinks with salt and minerals to ensure they never have any deficiency problem.) I personally have never experienced any problems from low electrolytes, but I have heard of people who have, and I've heard a lot more people concerned about it.
At the end of the 13 days, how much weight did you lose?
c. 9.3% of my starting body weight.
So what's the gist of the video?
Mr. Lex Fridman and Mr. Devon Larratt were chatting one time and Mr. Larratt mentioned something interesting.
What specifically is scaring you?
Cortisol-to-DHA ratio might get too high, which might throw off the anabolism (tissue building) to catabolism (tissue consuming) ratio detrimentally. That's what I gathered anyway, but I only watched it through once.
Yes, but studies show that the bodies of younger people are able to handle it. People over 50, not so much.
Yeah, he has an accent, talks rapidly, does not put things in layman's terms. Those 3 things combined required me to listen to it 3 times.
They did not mention any study that included weight training combined with fasting among older people. I'd like to see that.
Are you talking about intermittent fasting?
I think that's what @Jefferson was talking about. When I do intermittent fasting it's six days off and one day on. I'm gearing up to do one of those soon.
Do you suppose that God had it mind that people would need to eat three meals a day in order to be healthy past 50 years of age (i.e. or whatever age ancient peoples arrived at the equivalent level of physical maturity)?
To me fasting doesn't begin until after 24 hours. The definition of fasting among the fasting health gurus is fasting begins as soon as you stop eating. If you finished eating dinner 5 minutes ago, then you have been fasting for 5 minutes.
Ancient people engaged in daily manual labor, unlike our sedentary, television-watching, couch-potato sloths. So it's likely the muscles of ancient peoples would not waste away from eating only one meal per day. Maybe mine wouldn't either since I exercise 7 days a week. As I mentioned to Idolater, I'd like to see a study on that.
Mr. Huberman's been careful to point out the difference between fasting and what he calls something like "the fasted state" (which he contrast with the "fed" state). It's focusing on blood, because if you finished eating five minutes ago your blood will still be in some kind of fed state for many hours afterward. So a fasted state takes hours to appear, for most people it's overnight while they sleep for multiple hours. That's why the first meal is called "break-fast."
And weight lifting (strength training, c. muscle building) is just a question of how many repetitions of the exercise can you do before you have to quit because it's too difficult to do another. It's why simply walking all by itself isn't enough to promote longevity (as far as I understand), because most everybody can walk all day, which basically might as well mean "infinite" reps, which means it can't count as weight lifting.
Yeah, every time I did a 24 hour fast I always counted the first hour from when I woke up in the morning. All the health gurus would say it was 36 hours. It never made sense to me.