Jennifer Aniston, Michelle Obama and Vin Diesel all have one thing in common: Great biceps. They're also the names I hear most often from new clients who are eager to improve upon this most prominent body part. Our bellies and booties are super important in the game of creating a great physique, but those parts are usually covered up. Sleek and sexy arms are often on display in the board room and at the beach. Now's the time to make yours great!

In this video, I tell you how the bicep works and share a few pieces of equipment you can use to train them. I expect everyone to choose a challenging weight -- 5-pound dumbbells are rarely enough for anyone. Choose a weight that makes you grunt a bit -- it's OK to work hard. After a few weeks, go get some tank tops!