Learn what different shades of blood mean and how they signal changes in your health or potential medical issues.

Kidneys are the silent workers of the body. These organs filter out waste, balance fluids, and keep essential minerals in ...

Surprisingly, blood rain turned the sea red at a popular Iranian tourist destination, but there's science behind the ...

An expert MD explains what red poop could mean for you, from harmless causes to signs of something more serious.

Here’s how it works: The patient sits in a chair by the five-foot-tall (about 1.5m) device, which is called Aletta, and ...

The color blue on mood rings is mostly associated with feeling relaxed and calm, and Lewis says that that is “definitely accurate.” “ [The color] blue reduces heart rate and blood pressure, and makes ...

"It’s a cause that’s close to my heart, and it’s so important that we all come together to make a ... said the blood drive will also help seniors get scholarships. "The Red Cross offers ...

the soft center where new blood cells grow. It causes your marrow to make too many red blood cells so your blood is too thick. You may be more likely to have clots, a stroke, or a heart attack.

Polycythemia vera (PV) causes your bone marrow to make too many red blood cells. You need these cells to carry oxygen around your body, but too many of them can make your blood thicken and form clots.

Is this growing wellness trend the holy grail of holistic health remedies, or is it a scam? I took a deep dive to find out.

"So donating blood regularly teaches your stem cells to make red cells and platelets more effectively," she said. The study compared two groups of donors over nearly 40 years, finding that those ...

Red pee, or what appears to be blood in urine, has many causes. Here's how to tell if it's harmless or a sign of a more ...