Here are four dumbbell exercises that can help get your body up to speed, as per fitness blog FitSugar.

(Relaxnews) - From her coveted Academy Award for best actress to her enviable bikini body, Halle Berry seems to have it all. On August 14, Berry turns 46, so what better way to celebrate than to hit the gym, Bond-girl style, with a few fitness tips from her trainer Hally Pasternak.

The actress is reportedly no stranger to rowing exercises to get those sleek shoulders and back muscles (a perfect match for strapless dresses and tank tops). Here are four dumbbell exercises that can help get your body up to speed, as per fitness blog FitSugar on Monday. How much weight to use? It depends, but aim for enough weight that it exhausts your muscles by the 12th repetition.