ketogenicpedia: even as at night time they're high and help you fall asleep. However, if you are exposed to light for long hours at night with the aid of gazing your phone or computer or maybe whilst dozing with the light on, your melatonin ranges will continue to be low. This may alter your circadian rhythm, confusing your brain and maintaining you awake for longer. Blame the blue there are various wavelengths of mild emitted from electronic gadgets and strength saving light bulbs.