We have all experienced the effect of staring into our phones for hours just before sleep time. Dozing off, which should be one of the most effortless of tasks, is extremely susceptible to screen time. A study by researchers at Salk Institute has now provided an explanation behind this susceptibility.
The study, published in the journal Cell Reports, has shown how certain cells in the eye process ambient light and thereby reset the internal clocks of the body, also known as the circadian rhythm.
Exposing them to artificial light at night can confuse this rhythm and lead to many health issues.