2 episodes on Huberman Lab
Dr. David Berson is a professor of neuroscience at Brown University and an expert on the visual system and circadian biology. He has made significant contributions to understanding how the brain processes visual information and how light regulates circadian rhythms and melatonin release.
The visual system transforms photons into electrical signals through a complex cascade starting in photoreceptor cells and progressing through multiple layers of retinal processing before reaching the cortex for conscious perception
Dr. Berson discovered the specialized neurons in the eye that control circadian rhythms and regulate sleep, wakefulness, mood, and appetite