A blood centrifuge rotates between 3,000 and 5,000 times per minute, causing blood to separate into three distinct layers: ...

Nicotine and its byproducts may stay in your body for hours, days, or longer, depending on how often you've used nicotine and ...

Researchers at University of California San Diego School of Medicine and their colleagues have developed the first comprehensive map of the dramatic changes that take place in the blood system over ...

As our hair goes gray and our muscles weaken with age, our immune system also changes. In particular, the stem cells that ...