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.
Chris Evans is getting back into Captain America-level shape
Chris Evans' metamorphosis from hunky heartthrob to Captain America is the stuff of Hollywood transformation legend. Now, for 'Avengers: Doomsday', he's doing it all again. This is how









