The body’s immune system is constantly fighting a war against pathogens such as viruses, bacteria and even parasites.

Cerebral microbleeds are tiny areas of bleeding in the brain, often found in older adults or people with conditions like high ...

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.

Childhood leukemia symptoms can be subtle. Learn how to recognize early warning signs and when to seek medical advice.

Polystyrene nanoparticles are widely used in consumer products. The researchers found that nanoparticle exposure alters red ...