A summary of published research, not medical advice. See the Disclaimer.
Research summaries on sleep and the body clock, covering supplements and light exposure.
¶ Articles (3)
- Melatonin Probably helps a little (moderate evidence)
Research summary of human studies on melatonin, a pineal gland hormone sold as an oral supplement.
- Melatonin compared with other sleep aids Comparison
Research summary of human studies comparing melatonin with other supplements, antihistamines and prescription sleep drugs.
- Morning light exposure Probably helps (moderate evidence)
Research summary of human studies on morning light exposure, from outdoor daylight or a light box, also called bright light therapy or sunlight after waking.
Each article has a Studies page listing the indexed trials and reviews, scored for design. All of them are in the study browser.