Deep Dive: Blue Light Glasses

The average person spends nearly 7 hours a day looking at a screen. Blue light has short, high-energy waves; the sun is the biggest natural source, and it's vital for daytime alertness. The problem is artificial blue light at night.

Benefit 1 — Better Sleep: Blue light suppresses melatonin more than any other light type. Blocking it in the evening lets melatonin production happen naturally.

Benefit 2 — Reducing Digital Eye Strain: Blue light scatters more easily (Rayleigh scattering), creating visual noise that forces your eyes to work harder. Anti-glare coatings help.

Benefit 3 — Fewer Headaches & Migraines: Filtering the harshest part of the spectrum can reduce frequency and intensity of screen-induced headaches for light-sensitive people.

How to use them: Start wearing at sunset. Pair with the 20-20-20 rule — every 20 minutes, look at something 20 feet away for 20 seconds.