What does light therapy do in resetting circadian rhythms?
A) light resets the internal timing clock
B) light resets the basal ganglia
C) light resets the suprachiasmatic nucleus
D) light resets the retina

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN), located in the hypothalamus, is responsible for regulating the body's circadian rhythms. Light therapy exposes the individual to bright, artificial light in the morning or evening to reset the internal clock and synchronize the body with its natural rhythm. The light enters through the retina and activates the SCN, which signals the body to produce certain hormones and adjust sleep-wake cycles. Therefore, light therapy resets the circadian rhythm by resetting the SCN.

What Does Light Therapy Do in Resetting Circadian Rhythms