Interesting suggestions and true, but it's even more basic than that from my experience. I'm 50. I have 3 children, 31, 29 and 27. I am routinely mistaken as their partners. I'm routinely asked for ID. People generally put me somewhere around 27ish. I'm sure genes have something to do with it, but eating food, actual real food, is key. I eliminated processed boxed crap from my diet about 15 years ago. It was the best thing I ever did. If it doesn't grow or live, I don't eat it. Loved your article, it's something we all need to be reminded of.