When we are exposed to low levels of light the __________ begins to secrete the hormone melatonin, which acts to induce sleep.
A) thyroid gland
B) pituitary gland
C) pineal gland
D) adrenal glands

Question

Quizplus · Accepted Answer

The pineal gland is responsible for secreting the hormone melatonin, which helps to regulate our sleep-wake cycle. When we are exposed to low levels of light, such as in the evening or at night, the pineal gland begins to secrete more melatonin, which can make us feel sleepy and ready for bed.

When We Are Exposed to Low Levels of Light the __________