noun🔗Share褪黑素, 褪黑激素 A hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals"Many people take melatonin supplements to help them fall asleep more easily at night. "很多人服用褪黑素补充剂，以帮助他们更容易在晚上入睡。physiologybiochemistrymedicinebiologysubstancebodyorganChat with AIVocabulary GamePractice Reading
noun🔗Share褪黑素，美乐托宁 Any material similar in its chemistry and effect to the natural hormone."Taking a low dose of melatonin before bed can help some people fall asleep easier. "睡前服用小剂量的褪黑素，对有些人来说能更容易入睡。medicinephysiologybiochemistrybodysubstancechemistryChat with AIVocabulary GamePractice Reading
