Examlex
Humans have
Melatonin
A hormone produced by the pineal gland in the brain, involved in regulating sleep cycles and circadian rhythms.
Thyroid Hormone
Hormones produced by the thyroid gland that regulate metabolism, energy generation, and neuronal development.
Parathyroid Hormone
A hormone produced by the parathyroid glands that regulates calcium levels in the blood and bone metabolism.
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