Shape Mags 8 Reasons Women should lift weights (heavy)

-Higher calorie burn through 24 hours period
-Better overall fat lose
-Better Belly Fat Lose
-More definition
-Injury prevention
-Confidence Boost
-Oteoperosis Prevention
-Faster Strength Gains

Details of each below, its a fast read

http://www.shape.com/fitness/workouts/8-reasons-why-you-should-lift-heavier-weights