Coffee has been around for ages and blamed for many things such as- stunted growth, heart disease, and a mild spike in cholesterol levels.

However, there are many studies that show the benefits of drinking coffee. For example, studies have shown that regular coffee drinking decreases risk of Parkinson’s disease by 25%. It can also decrease insulin sensitivity and weakens glucose tolerance, so it reduces the risk of type two diabetes. Caffeine can also protect people from liver disease, and all kinds of different cancers such as, liver cancer, prostate cancer, endometrial cancer, and different types of skin cancer, according to  Dr. Donald Hensrud, author of the article titled “Does coffee offer health benefits?”
Although caffeine is very helpful in an internal way, it’s also very beneficial for mental and physical performance. An hour before a workout, a cup of black coffee could improve physical performance by 11-12%. Caffeine increases adrenaline levels in the blood and the adrenaline is basically the body’s “fight or flight” hormone which supports the body to prepare for physical strain, stated an article titled “12 Health Benefits and 6 Disadvantages of Coffee (Smashing It!)”

Additionally, coffee assists the brain to stay alert and focused. It stimulates the central nervous system and fostors production of neurotransmitters like serotonin, dopamine, and noradrenaline, which help elevate your mood. In that case, caffeine is a big supporter of fighting depression, and it lowers the risk for suicide.

In conclusion, there is a limit to how much coffee a person can consume. For example, two to three cups of coffee a day is the most a person can drink.