Cut Back on Caffeine
Caffeine can give you a buzz, but using it can also bring you down because caffeine withdrawal, and one of its primary symptoms, fatigue, may make this boost backfire. Withdrawal can occur with a caffeine intake as low as 100 milligrams a day (the equivalent of one cup of brewed coffee) and can set in as early as 12 hours after your last cup of joe. "Symptoms increase with the amount of coffee you drink," says Chad Reissig, PhD, of Johns Hopkins University School of Medicine. Consider progressively easing back on caffeine, slowly switching to decaf or substituting peppermint tea.