Don't be afraid to build muscle!
There is a fear amongst women that lifting weights will make you bulky, and resemble the incredible hulk. Luckily this is far from the truth, in fact lifting your bodyweight, dumbbells or the barbell will build lean muscle and change your body-shape, giving you a leaner look without the huge muscles you fear. The muscle you build will in turn burn more calories throughout the day helping to boost your metabolism, help maintain muscle tone and also may help prevent weigh