If you are struggling with insomnia or sleep deprivation, you should take a closer look at your habits before sleep. Many people end up watching tv, browsing the web, or playing on their phone right before bed. Studies have shown that these things can be very detrimental to sleep patterns and could potentially disrupt someone's circadian rhythm. Researchers believed this is caused by screens emitting a certain blue light that forces the body to think it isn't tired and shouldn't go to sleep.