Cut Your Coffee After 2 P.M.
“Caffeine can stay in your body for eight to 10 hours after you drink it,” says Lisa Medalie, PsyD, a behavioral sleep medicine specialist at the University of Chicago. Taking a coffee (or cola) break in the late afternoon can thwart your plans to hit the hay by midnight. Going decaf isn’t necessarily a way to get around this. Adds Medalie: “Even decaffeinated coffee contains some caffeine, and it can be enough to keep you awake later at night.” A large decaf from Starbucks, for example, contains 30mg of caffeine.
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