11. A woman shouldn't lift weights unless she wants bulky muscles.
Women don’t have enough testosterone or other male androgen hormones needed to really bulk up.
Lifting low to moderate amounts of weight, multiple times, tones muscles but does not oversize them, notes Jonathan Chang, MD, clinical assistant professor of orthopaedics at the University of Southern California.
And weight training can be good for a woman's bones, helping guard against osteoporosis.