
Dr. Robert Langer
From Scratch with Jessica Harris
00:00
How Long Do You Exercise?
Robert Langer has been exercising for 32 years. He uses a recumb of bike, an elliptical machine, treadmill and weights. "I just want to live as long as I can for my kids," he says.
Play episode from 29:13
Transcript

Dr. Langer is a chemical engineer who has pioneered the fields of drug delivery and tissue engineering. His 
