A strong immune system helps protect you from infections by germs such as bacteria, viruses, and fungi. Some signs may show that your immune system isn’t working well. One clue that your immune system ...

A tired body gets blamed on stress. A bloated stomach gets dismissed as something eaten in a rush. Joint stiffness is brushed off as age or long work hours. But sometimes, these scattered signals are ...

Your immune system was supposed to protect you from threats, but sometimes it gets confused about what counts as an enemy and starts attacking your own healthy tissues. This internal betrayal happens ...

It can be difficult to recognize signs of good health. Here, doctors explain five signs that your body is working ...

Multiple sclerosis (MS) is an autoimmune inflammatory disease of the central nervous system in which your immune system mistakenly attacks the protective coating around your nerves—called myelin. This ...

Understanding both kinds of changes is becoming increasingly important as people live longer worldwide. Age-related immune ...

Many people brush off frequent illness as stress, weather changes or simply bad luck. A cold that keeps returning, wounds that seem to take forever to heal or a constant feeling of tiredness often ...

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