A workout partner not only keeps you accountable, she also may help you clock more time at the gym and torch more fat. A British survey of 1,000 women found that those who exercise with others tend to train six minutes longer and burn an extra 41 calories per session compared to solo fitness fanatics. [Tweet this fact!] Women with Bikram buddies and CrossFit comrades said they push themselves harder and are more motivated than when they hit the gym alone.
Vickers, M. R; MacLennan, A. H; Lawton, B.; Ford, D.; Martin, J.; Meredith, S. K; DeStavola, B. L; Rose, S.; Dowell, A.; Wilkes, H. C; Darbyshire, J. H; Meade, T. W (4 August 2007). "Main morbidities recorded in the women's international study of long duration oestrogen after menopause (WISDOM): a randomised controlled trial of hormone replacement therapy in postmenopausal women". BMJ. 335 (7613): 239. doi:10.1136/bmj.39266.425069.AD. PMC 1939792. PMID 17626056.
Consult your health care professional. Women of childbearing age may want to consider taking folic acid supplements to reduce the risk of having a pregnancy affected with neural tube defects. Many women and teenage girls don't get enough calcium or vitamin D, both of which are critical to healthy bones and avoiding osteoporosis. Some people with diabetes appear to benefit from chromium. Vegetarians, especially vegans, may want to consider supplements to obtain nutrients they aren't getting from animal products.