2016 Boston Marathon, Mile 7: Because I Got High

Special | 1m 50s

We’ve all heard about runner’s high: that elusive “I can run forever” rush that some people chase on a daily basis. Is it real? What causes it?

Aired: 04/08/16

Rating: NR

Problems Playing Video? | Closed Captioning

WGBH is a local public television program presented by GBH.