Posted 24 February 2017 - 12:16 AM
Posted 27 February 2017 - 07:00 AM
Melatonin isn’t directly sensitive to light. It’s synthesized by the pineal gland, in response to nerve signals via a special nerve pathway from special cells in the retina of the eye to a small, special region of the hypothalamus, the suprachiasmatic nucleus.
Melatonin in the body is sensitive to sunlight.
Dopamine also isn’t sensitive to sunlight. It’s synthesized mostly in the basal ganglia section of the brain, and unlike melatonin, not regulated by any input from the eye or other ligh-sensitive organs.
Is dopamine, like melatonin, sensitive to sunlight ?
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