Blue Light Blocking’s Weak Effect on Sleep Revealed [Video]

As a self-help junkie, I’ve always been on the lookout for ways to optimize my sleep. One popular trend that caught my attention was the idea of reducing blue light from screens before bedtime. Entire businesses, like those selling blue light blocking glasses, have capitalized on this concept. And I’ve been using the Night Mode softwares on my computer and phone for several years (f.lux is the one for PCs, Night Mode is the one for iPhones). However, recent videos made me question the effectiveness of this approach. It turns out that the whole idea of reducing blue light for better sleep might be a myth.

For years, we’ve been told that the blue light emitted by digital screens interferes with our sleep patterns. The theory is that our body’s circadian rhythm, or natural body clock, responds to environmental cues. When exposed to bright light during the day, our bodies …