Study: Take vitamin D with calcium

A new analysis on the effects of vitamin D on bone health shows that it cuts fracture risk in older adults, but only when taken with calcium supplements. The review of nearly 50 studies on vitamin D -- present in a small number of foods and produced naturally in the skin with sun exposure -- by the U.S. Preventive Services Task Force also indicates that it's too soon to tell if vitamin D supplements can help prevent cancer.

Young women who get their tan out of a bottle may spend less time sunbathing or using tanning beds, two riskier behaviors, according to a new study. Using a sunless tanning product is a safe alternative to ultraviolet radiation (UV) exposure, which is linked to skin cancer and premature aging, the researchers said. They found that women who used tanning products most often reduced their overall UV-tanning time.