Fatigue

Caffeinated beverages including coffee, tea, and others are proven to increase energy. However, they may potentially have the reverse result by causing rebound fatigue after the caffeine.

Despite caffeinated energy drinks boosting alertness and mood for several hours, a review of 41 studies found that participants were frequently more exhausted the next day. Of course, you may prevent the rebound effect by consuming large amounts of coffee throughout the day. On the other side, this can interfere with your sleep. Consume caffeine in moderate rather than large dosages to optimize its energizing effects and prevent rebound fatigue.