Nov 8, 2021
Celestica 2.0
Shine the light behind your knees
To offset the breeze
Feeling jet-lagged? Having trouble sleeping? Is your body clock on the wrong setting? The answer could be to shine a bright light behind you
But Scott Campbell at Cornell University Medical College, New York, has shown that shining a bright light on the area behind the knees, known as the popliteal region, has the same effect. ... But by some quirk of evolution, humans have a circadian rhythm photoreceptor on the back of their knees.