We all know the runner’s high is real, but science still isn’t certain about why it occurs. We spoke with Dr Greg Gerdeman, an assistant professor of biology at Eckerd College, to understand the current theory. It’s spelled out in the video above.
How to ace the pressure cooker challenge
Looking for a total body metabolic burner? Try the pressure cooker challenge. Here's how to nail it with strict form for the ultimate burn.