For decades, elite runners have traveled the world to train at high altitude. When oxygen levels in the air are low, the body ...

This common blood test indicates whether or not your body has been coping well with sugar over the last few months.

UCSF scientists found a precise way to turn on cancer-fighting immune cells inside the body. This more potent form of CAR-T ...

After a long trail race, some of your red blood cells may not bend the way they should. That matters because red blood cells have a tight job description.

Learn what vitamin B6 does in your body, including benefits for brain health, energy, immunity, heart health. Plus, the best food sources of this essential nutrient.

A recent mouse study suggests that low-oxygen conditions, such as being at high altitudes, could cause red blood cells to absorb excess blood glucose, potentially helping to protect against diabetes.

Dr Sandip Shah said aplastic anemia can affect anyone, but is more common in younger adults. Symptoms include fatigue, shortness of breath and bleeding.

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a recent study. Although the duration and long-term implications of the ...

Blood tests are the most common way for health professionals to detect and diagnose a range of medical conditions. But can it ...

The NHS has shared several symptoms of iron deficiency anaemia, with one that may show up in the leg. Iron plays a vital role ...

Pale skin might not just be about tiredness or lack of sun, experts say it could be a clue your body is missing an essential ...

(WASHINGTON – Feb. 18, 2026) – Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a study published in the American Society of ...