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Blue Light and Sleep: What's the Connection?

Sleep is one of the pillars of optimal health. However, people are sleeping much less than they did in the past. Sleep quality has also declined. Poor sleep is linked to heart disease, type 2 diabetes, depression, and obesity. The use of artificial lighting and electronics at night may contribute to sleep problems. These devices emit light of a blue wavelength, which may trick your brain into thinking it's daytime. Many studies suggest that blue light in the evening disrupts your brain's natural sleep-wake cycles, which are crucial for optimal health. This article explains how blocking blue light at night can aid your sleep.



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