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Too much caffeine.
Too much caffeine.
SHUTTERSTOCK

That afternoon cup of coffee can disrupt your sleep cycle: researchers at Michigan’s Henry Ford Hospital’s Sleep Disorders & Research Center found that consuming caffeine even six hours before bedtime can reduce how long a person sleeps – and the quality of their sleep. Psychology Today advises drinking your caffeine early in the morning, then tapering off by 2pm. After that, no caffeine for you.

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