I'd like to talk about the aging aspects of that. But it used to be that I was fasting the day and just eat at night. And that's mostly because my husband, Dan, can't sleep if he doesn't eat something before bed, which is like he can't sleep when he's hungry. And there's some truth to that, right? [...] I'd love if you would like to talk a little bit about caloric restriction or dietary restriction, which is what we know call it, and intermittent fasting. And, like I've seen some studies comparing the two in terms of longevity and how there's similar effects in almost every respect in terms of the metabolic effects, glucose metabolism, in terms of brain atrophy, brain aging, multi-organ aging all being delayed.