harmful effects of coffee
In addition, some studies found that two or more cups of coffee a day can increase the risk of heart disease in people with a specific â and fairly common â genetic mutation that slows the breakdown of caffeine in the body. So, how quickly you metabolize coffee may affect your health risk.
Caffeine found in tea, coffee, and other foods and drinks, is a drug, an alkaloid, related to some of the most violent of poisons. When it enters the human body, it produces at first a feeling of stimulation, followed in due course by a period of depression, relief from which is sought by the use of more caffeine.