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Quick answer: Yes, L-theanine can cause headaches in some people, though it's not a common side effect. In research, headaches were more likely when L-theanine was taken on its own, and less likely when it was taken with caffeine. Migraines...
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Quick Answer: The most studied natural sleep aids are melatonin, magnesium, L-theanine, glycine, and tart cherry. These are usually milder than over-the-counter or prescription sleep aids and carry less risk of dependence. The best choice depends on your sleep issue....
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Quick Answer: Yes, hormones can affect your sleep, and changes in hormone levels are a common reason for insomnia. Melatonin helps you fall asleep, while cortisol helps you wake up. Estrogen and progesterone also influence how well you sleep. Sleep...
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Quick answer: Magnesium glycinate is the form of magnesium most often suggested for sleep, because it absorbs well and rarely upsets the stomach. Studies have used 200 to 400 mg of elemental magnesium in the evening, though most adults should...
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Quick answer: Shift work disrupts sleep because working nights or rotating hours conflicts with your circadian rhythm, the body clock that signals when to sleep and wake. This can cause trouble sleeping, daytime sleepiness, and a condition called shift work...
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