The first double-blind clinical trial of vitamin D in people with sleep disturbance has found it significantly helps improve sleep.
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Featured: Vitamin D supplement improves sleep


Social media related to sleep problems
A new study has found that social media use strongly predicts sleep disturbances in young adults, a finding with important implications for our health.
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Coffee delays your body clock
Researchers have shown that a daily dose of coffee delays your body clock, which helps explain why it can disturb sleep.
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Want better sleep? Go natural.
By comparing sleep patterns of traditional people living without electricity with a modern village, electric lighting has been linked to worse sleep in a natural setting, for the first time.
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eReaders sabotage your sleep
A recent study found that, compared to a book, a light-emitting eReader suppresses melatonin, impairs your sleep and reduces next day alertness.
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Smartphones disrupt sleep and zap energy
Think using your smartphone at night makes you more productive? New research suggests you need to think again.
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