@sungazingapp: Did you know your eyes do more than help you see? 👁️✨ In the early 2000s, scientists confirmed a special type of light-sensing cell in the retina: intrinsically photosensitive retinal ganglion cells. They contain a pigment called melanopsin, which is most sensitive to blue-ish light. These cells help tell your brain's master clock whether it's day or night. That's photobiology: how living things respond to light. Humans, plants, and animals have been tuned to the sun for a very long time. What part of the science of light fascinates you most? Share this with a fellow light nerd! 🔬 #Photobiology #ScienceOfLight #Melanopsin #CircadianRhythm #Wonder #fyp

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