Medically reviewed by Roxana Ehsani, RD Key Takeaways The body breaks down food into glucose (a simple sugar) and releases it ...

Learn more about red blood cells, transporters of oxygen throughout your body, including vital organs and tissues.

With this ability to mature in step with the body, the scientists are optimistic about the potential of their artificial blood vessels.

Here’s what blood clots are, how they’re typically treated and what they actually feel and look like so you can know when it's time to worry.

Dehydration occurs when the body is lacking the adequate amount of fluids (primarily water) that it needs to function. If you are losing or using more fluids than you are taking in, you will ...

Blood oxygen levels help indicate lung health, as well as other conditions that happen in the body. Learn more about normal blood oxygen levels here.

What time is your body clock set on? The answer, mounting research suggests, can influence everything from your predisposition to diabetes, heart disease and depression to the optimal time for you to ...

Learn about your blood oxygen level, including what it is, how to increase it, and more.