when does the pineal gland develop in a fetus
Pineal gland The human pineal gland grows in size until about 1â€“2 years of age, remaining stable thereafter,[20][21] although its weight increases gradually from puberty onwards.[22][23] The abundant melatonin levels in children are believed to inhibit sexual development, and pineal tumors have been linked with precocious puberty. When puberty arrives, melatonin production is reduced.[citation needed]