Anaemia is not always caused by low iron. A doctor explains the warning signs, causes, and risks of aplastic anaemia, a rare but serious blood disorder.

Common features of this condition include low haemoglobin, leading to fatigue; a low white blood cell count, increasing the risk of infections; and a low platelet count, increasing the risk of bruisin ...

There are many ways that the human body responds to stress, from the adrenaline rush of the "fight-or-flight" instinct to more subtle, complex changes that may not be immediately recognizable to us.

A vivid new image is taking shape in the world of cell biology: Imagine bacteria adhering to the surface of a cell, perhaps at the site of an injury or wound. In response, a white blood cell arrives ...