Doctor Mike Evans (St. Michaels Hospital and Prof at U of T) makes a video that goes viral. He talks about his "magical pill" that cures or helps eliminate a plethora of diseases and complications. Turns out this magic pill is just exercise. 30 minutes a day. He goes on to discuss how more than 30 minutes ends up being less rewarding, and tells you why 30 minutes is the magic number. He talks about its health implications, how TV is killing us, and lots of other great stuff.