What are the disadvantages of drinking coffee?

Coffee is a beverage produced from roasted coffee beans from the Coffea arabica bush. Brewed coffee prepared using normal grounds and tap water contains 40 mg caffeine per 100 gramme and no essential nutrients in substantial amounts.

Coffee is widely consumed to alleviate mental and physical exhaustion as well as to promote mental alertness. Coffee is also used to prevent Parkinson’s disease, dementia, and a variety of other diseases, however, there is little scientific evidence to back up many of these claims.

What are the disadvantages of drinking coffee?

Although drinking coffee has its benefits, there are some disadvantages to excessive consumption. “Too much of anything is bad,” as the adage goes.

Caffeine in coffee can cause sleeplessness, agitation and restlessness, stomach discomfort, nausea and vomiting, an increase in heart and breathing rate. Too much consumption may also result in headaches, anxiety,  ringing in the ears, and irregular heartbeats.