[smt88]

I have multiple relatives who are aging researchers.

Fasting is healthy and normal. Many humans historically regularly "fasted" by today's standards just by going 12+ hours between modest meals.

We know that it slows signs of aging, but it can also depress the immune system (which might be why it slows aging), so it can still cause you to die young.

The effects of fasting on all-cause mortality are generally positive, but it's unclear right now whether that means people need to do uncomfortable levels of fasting or if most of us are just killing ourselves with eating too much and too often.