Melatonin Melatonin is a naturally-occurring hormone. It helps regulate the sleep-wake cycle in the brain. Your body makes it at night when the light is low.1 Research suggests melatonin supplements may help conditions associated with low levels of melatonin, such as:2 Circadian rhythm-related sleep disorders Jet lag Shift work Insomnia in children with neurodevelopmental disorders Nocturnal hypertension Melatonin supplements may improve sleep quality and morning alertness in older adults with insomnia.3 The most common side effects of melatonin are:4 Daytime drowsiness Headache Dizziness Nausea Nightmares Melatonin supplements can interact with some types of medicine, so talk with a healthcare provider before taking them. Valerian Root Valerian root (Valeriana officinalis) is thought to affect levels of gamma-aminobutyric acid (GABA)—a calming chemical in the brain. Studies measuring sleep quality have found no difference between people taking valerian and those taking a placebo. ...
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