Caffeine stimulates the nervous system and can increase adrenaline levels in the body. This is why many athletes drink coffee before exercise—it may help improve endurance and physical performance.
4. It May Support Heart Health (in Moderation)
Some research suggests that drinking moderate amounts of coffee—usually about 2 to 4 cups per day—may be linked to a slightly lower risk of heart disease.
5. It Helps the Digestive System for Some People
Coffee can stimulate the digestive system and may encourage bowel movement in certain people. That’s why many people feel the urge to go to the bathroom after drinking it.
6. But Too Much Coffee Can Cause Problems
Doctors also warn that excessive coffee consumption may lead to:
Insomnia or poor sleep
Anxiety or nervousness
Increased heart rate
Stomach irritation
