What happens to the brain during menopause? A new study finds that the brain undergoes structural changes, including the gray ...

Is walking 4,000 steps once or twice a week enough to reduce heart disease risk? A new study found that those who took at least 4,000 steps lowered their cardiovascular disease risk by 27%.

Vitamin D2 supplements may negatively impact circulating levels of vitamin D3 and negate the latter's potential benefits, ...