Side Effects of Excessive Caffeine Intake You Should Never Ignore

Coffee and tea are healthy beverages. Most types contain caffeine, a substance that may boost your mood, metabolism, and mental and physical performance. Studies have also shown that caffeine is safe for most people when consumed in low-to-moderate amounts. According to the Food and Drug Administration, most people can consume 400 mg of caffeine without experiencing negative effects. However, high doses of caffeine may cause unpleasant and even dangerous side effects.