Caffeine, a natural drug contained in coffee, stimulates the central nervous system. It is possible to be allergic to caffeine. Symptoms of a caffeine allergy include hives, swelling, itching, and ...

Caffeine withdrawal can cause several symptoms, such as headache, anxiety, irritability, and low energy levels. Gradually reducing your intake, staying hydrated, and getting enough sleep can help.

In moderation, caffeine can have beneficial effects. But in larger doses it can put your health, and in rare cases, even your life at risk. Share on Pinterest Last month Davis Allen Cripe, a healthy ...