It’s more about nutrition and genetics.

Calories and macros in childhood is very critical to how people grow.

Yep literally. I have a friend that’s gone around it 16 times in a year. Granted he has also done the Grand Canyon trails 9 different trails in 9 days.

Ultra runners are insane. I’m 35 and I was the youngest in a group of 4 that did St. Helens about a year and a half ago.

I have ran around this thing in a day. It’s much bigger than people think and has different climate zones. The other side of the mountain looks starkly different still and those valleys are still really soft.