Try this 5-minute arm workout you can do in any outfit

Hilary Hoffman, a celebrity trainer and founder of Soto Method, stops by Studio 1A to share a five-minute exercise to work out your arms that you can do anytime, anywhere.  NBC News Health

​Hilary Hoffman, a celebrity trainer and founder of Soto Method, stops by Studio 1A to share a five-minute exercise to work out your arms that you can do anytime, anywhere.