The word “epidemic” immediately brings to mind a highly infectious and deadly disease of the kind found in Hollywood films. In Contagion, for instance, a lethal infection with frightening symptoms ...

Autoimmune diseases occur when the immune system mistakenly attacks healthy tissues. Many autoimmune diseases cause flares of symptoms that come and go, sometimes in response to triggers or actions.

Aristos is a Newsweek science and health reporter with the London, U.K., bureau. He is particularly focused on archaeology and paleontology, although he has covered a wide variety of topics ranging ...

Diagnostic biomarkers are used to detect or confirm the presence of a disease or condition. They can help identify individuals with a particular disease or at high risk of developing the disease.

“Structural heart disease” is an umbrella term that refers to conditions that affect different structures within the heart. Some of these problems can be present at birth, while others develop later ...

Infectious diseases are common worldwide. Your immune system is able to fight most germs that you grew up with. If you've been deployed abroad, you may have encountered some germs you're not used to.

According to the most recent Diagnostic and Statistical Manual of Mental Disorders (DSM 5), there are nearly 400 different psychological disorders. Some of these disorders fit the definition of ...

It is known that improperly folded proteins, called prion proteins, can cause serious detrimental health effects known as prion diseases. Examples include Creutzfeldt-Jakob disease and kuru in humans, ...