Yes, you want to build up your physique – but are you doing too much? Here's what you need to know ...

Let sports scientist Ross Edgely teach you how to pack muscle on your biceps, forearms and shoulders by mastering bicep curls ...

Add Yahoo as a preferred source to see more of our stories on Google. "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." NO ARM DAY WORKOUT is complete ...