Night

https://www.youtube.com/embed/2BoLqqNuqwA What Makes You Tick: Circadian RhythmsHow do you know when it's time to sleep or time to wake up in the morning more powerful than any alarms?Honor your own circadian rhythms, 24-hour cycles and biological processes that exist in every living thing?They keep your body functioning on schedule, day and night wherever you are and the key to it all is a bunch of cells in the retina of the eye called photosensitive retinal ganglion cells, whilst the eyes rod and cone cells are responsible for vision.These retinal ganglion cells detect the brightness of our surroundings and send that…