I have been working out with Hannah, a trainer at Equinox Fitness, as part of my Spring fitness challenge. Strength training under her eagle eye has been wonderfully intense. One thing I have noticed is that Hannah consistently hands me dumbbells of a higher weight than I would choose myself. Although the weight is challenging, I can do it and my muscles feel worked by the last rep. She believes that most women choose weights that are too light. Weight training is a great workout and important to both health and weight loss, but don't shortchange yourself. Five-pound weights are not appropriate for all exercises. Next time you work out, choose the next weight up. If you have been using 10-pounders for your biceps curls, try a 12.5-pound dumbbell. You need to challenge your muscles with more weight than they can handle in order for them to grow stronger — weight lifting is a mental game, too! So psych yourself up and challenge your strength.