Fluctuations in your energy levels could serve as an early indicator of a vitamin C deficiency. In fact, one of the earliest signs of vitamin C deficiency is persistent fatigue and general weakness.

Medically reviewed by William Truswell, MD Blisters are temporary, fluid-filled pockets on the outer layer of skin. They are ...

Los Angeles Chargers coach Jim Harbaugh gave an impromptu lesson on the cardiovascular system Thursday when he was asked about his team playing in cold weather.