Melanopsin, the key photoreceptor in the eye, detects light and transmits signals through the Suprachiasmatic Nucleus (SCN) to the pineal gland, which stops melatonin production, triggering the pituitary gland to increase ACTH and cortisol levels, thereby promoting wakefulness.
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Master Your Circadian Rhythm: Sleep Better, Live BrighterAdded:
Melanopsin is the key photoreceptor in the eye that dictates the circadian rhythmicity. So, for the for the layperson, I light hits your eye that light gets trans you know, transduced through different nerves through melanopsin through the SCN. The SCN is part of the brain, it goes to the pineal gland, tells the pineal gland to stop making melatonin, and then your your body responds by increasing ACTH in the pituitary or increasing cortisol systemically, and you're awake.
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