Episode 199: Ken and Dawn respond to listener questions on aging, meat consumption and dementia, genetic testing, AI, exercise, a lunar mission and much more

Today we have the second of a two-part AMA. In part one, episode 198, we covered a multitude of listener questions about AI, which lately seems to dominate the news cycle. Other than one AI question that managed to sneak in, today’s AMA features a wide range of questions on a number of topics other than artificial intelligence.

Today, Ken and Dawn respond to listener questions that range from:

— Whether there’s a critical difference between whey protein powders and ready-to-drink protein shakes?

— Is there a sweat spot for how much time a person should spend on resistance training during a week?

— Ken’s thoughts on a paper that looked at whether higher meat consumption could be associated with a lower risk of dementia among people carrying the APOE ε4 gene variant.

— What kind of Pandora’s box will we open if parents start doing genetic tests on their infants to see if their children have, say, the APOE ε4 gene variant?

— Will NASA will be able to meet its target date of sending astronauts back to the Moon by 2028?

— And a lot more.

Show notes;

[00:03:05] A listener asks Ken about the 2019 Trim study by Gregory Fahy and colleagues in Aging Cell, which reported reversal of epigenetic aging and signs of thymic regeneration in nine healthy men treated with the growth hormone, DHEA, and metformin.

[00:06:56] Ken responds to a question about the market being flooded with protein supplements. The listener asks if whether there’s a critical difference between whey protein and ready-to-drink protein shakes, and if there are any specific products he recommends.

[00:10:50] A listener asks Ken about a recent article in Nature Reviews Neuroscience titled: