Muscles: More Than an Exercise in Vanity

Bulky isn’t necessarily better when it comes to muscles. What’s important is keeping them fit so they’ll provide power and strength as the body ages.

Zrodlo (oryginalny wpis) na http://www.nytimes.com/2008/05/13/health/13muscles.html?partner=rssnyt&emc=rss,By GINA KOLATA