As Miriam is drifting off to sleep, she wonders which part of her endocrine system helps make her feel drowsy.

Question

As Miriam is drifting off to sleep, she wonders which part of her endocrine system helps make her feel drowsy. Which endocrine gland is MOST respopnsible for helping Miriam sleep well?

GPT-5 mini · Answer

The pineal gland — it secretes melatonin, a hormone that rises in the evening (in response to darkness) and helps promote drowsiness and regulate the sleep–wake (circadian) rhythm.

As Miriam is drifting off to sleep, she wonders which part of her endocrine system helps make her feel drowsy. Which endocrine gland is MOST respopnsible for helping Miriam sleep well?

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