Myth No. 2: Caffeine causes insomnia
Fact: It depends. The human body absorbs caffeine quickly, but it also flushes it quickly. Processed mainly through the liver, caffeine has a relatively short half-life. On average it takes four to five hours to rid half of the consumed caffeine from your body–after another five hours 75 percent of it is eliminated. Unless you are very sensitive, a morning cup or two shouldn’t effect your sleep.
But if you have a quick latte at the 3:00PM slump, or an espresso after dinner–you may be counting sheep for a lot longer than you’re comfortable with. Your sleep shouldn’t be affected if you steer clear of caffeine for at least six hours before bedtime. Your sensitivity may vary, though, depending on your metabolism and the amount of caffeine you regularly consume.
Next: Myth No. 3