If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust. Regular smokers can also blow out darker mucus because of the tar or other toxic ...

Every second, an adult generates around five million new blood cells to replace aging or dying ones, making the blood system a highly regenerative organ.

New research shows how a specially trained population of immune cells keeps the peace by preventing other immune cells from attacking their own. The study provides a better understanding of immune ...

Our blood consists of many cell types that develop through different stages from a precursor type -- the blood stem cell. An international research team has now investigated the developmental pathways ...

A research team led by Mount Sinai has uncovered mechanisms of abnormal immune cell function that may lead to Crohn's disease ...

Plasma cells are a type of white blood cell found in your bone marrow. They are one of several types of cells in your immune system that work together to fight infections and other diseases. Normal ...

Besides the religious obligation upon Muslims to fast during Ramadan, countless health benefits come with the one-month ...

Your body shows early signs of future diabetes risk. Learn to spot these subtle clues and take action before it becomes a ...

Our blood consists of many cell types that develop through different stages from a precursor type—the blood stem cell. An ...

Even though vitamin B12 is found in many foods, its insufficiency and deficiency are relatively common. Low B12 symptoms lead ...

Researchers have found that some cells form new multicellular structures with functions that defy their original biological ...

Oranges are a citrus fruit known for their immune-boosting properties, due to their high vitamin C content. However, there ...