Science Happens! By Carl Zimmer Watch: Episode 9: Can exercise make you smarter? Scientists think it’s possible
Health By Associated Press Exercising while angry or upset could carry temporary heart risks, study says
Quick Take By Ike Swetlitz Attention desk jockeys: Those who sit at work need an hour of exercise a day
Health By Leah Samuel Activists press Christian college to stop tracking students’ exercise with Fitbit