What,if anything,does the rising and setting of the sun contribute to circadian rhythms?

Question

​What,if anything,does the rising and setting of the sun contribute to circadian rhythms?

Quizplus · Accepted Answer

The rising and setting of the sun helps to reset our internal circadian rhythm. This is because light exposure, particularly in the morning, helps to suppress melatonin production and promote wakefulness, while decreased light exposure, particularly in the evening, promotes melatonin production and encourages sleepiness. By being exposed to these natural cues from the sun, our bodies learn to entrain to a 24-hour rhythm.

​What,if Anything,does the Rising and Setting of the Sun Contribute

What,if Anything,does the Rising and Setting of the Sun Contribute