Emma Chamberlain spoke with PEOPLE exclusively about her sober journey, blazing a path of her own, knowing her limits and a ...

“A VO2 max workout will make those mitochondria work more efficiently,” Fitzgerald says. The more mitochondria you have to work efficiently, the greater your capacity to improve your pace.

I tried the 12-minute daily workout Helen Mirren’s used for her ‘whole life’ – here’s why it’s stood the test of time ...