Light has the biggest impact on your circadian rhythm since it imitates the natural light from the sun. This 24-hour cycle is what helps regulate your sleeping patterns and allows you to perform necessary daily tasks and functions. You can’t discuss the effect of blue light on sleep without mentioning your body’s circadian rhythm. What many don’t realize is that doing so is sabotaging their sleep cycle and ability to achieve quality rest. At least 90% of people admit to using one of these devices either in bed or within an hour of trying to fall asleep. Other common sources of blue light include video game consoles, televisions, computer screens, tablets, smartphones, and e-readers. Blue light is emitted from electronic devices, fluorescent lights, and LED lights. Blue light is just a small portion of the visible light spectrum that affects hormone production, alertness, and your sleep cycle. For example, a rainbow represents all the colors of the visible light spectrum whereas white light from the sun is actually a combination of colors. Your eye processes different colors of light based on energy levels. Exposure to artificial light too close to bedtime tricks your mind into thinking it’s daytime and you should be awake and alert rather than winding down and preparing for sleep.įrom a scientific standpoint, all light is made up of electromagnetic radiation – an invisible form of energy. Blue light also interferes with your natural sleep cycle which is regulated by the rising and setting of the sun.
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