Blue light is found all around us, especially during the day! Although, blue light is environmentally friendly, there are many versions of man-made blue light that can affect your nightly sleep. According to a study from Harvard Medical School, using back-lit devices such as cell phones, tablets or even watching TV, can throw off your biological clock and can confuse your body. This can potentially result in suffering sleep, obesity, heart disease and even cancer.
As the night goes on and the darker it gets, your body starts to naturally become less energetic and more sleepy. This is because as we prepare for a night’s rest, our brain starts to release melatonin. However, using digital devices can confuse the brain into thinking it is daylight and therefore get a surge of energy instead of melatonin.
It is nearly impossible to avoid blue light in this day and age, especially before bed. Just about everyone does a last minute scroll through Instagram or is finishing up an episode on Netflix. So, how can we protect our eyes during this time?