5 Surprising Signs You Might Need Blue Light Glasses (even if you don't think so)
Most people think that blue light glasses are just for gamers or tech geeks — but growing evidence, including from Harvard Health Publishing, suggests otherwise.
Harvard researchers have found that exposure to blue light, especially at night can disrupt melatonin production, delay sleep, and even interfere with your circadian rhythm. If you've been feeling "off" without knowing why... your screen time might be to blame.
1. 😵💫 You feel wired at night — but still can't sleep
Blue light tricks your brain into staying alert when it should be winding down. If you find it hard to fall asleep after using your phone or laptop, your melatonin is likely being suppressed.
2. 👀 Your eyes feel tired — even early in the day
Digital eye strain is real. If your eyes feel dry, sore, fatiqued (especially mid-afternoon) blue light could be stressing them more than you think.
3. 🤕 You get headaches after screen time
Mild headaches or pressure around the eyes may come from your eyes working overtime to filter harsh light — a common symptom of blue light exposure.
4. 🧠 You can't focus like you used to
Ever feel foggy after staring at the screen too long? Blue light may interfere with brain function and attention, especially after artificial LED lighting.
5. 💤 Your sleep schedule keeps shifting
Staying up late and waking up groggy? Blue light delays your internal clock, making it harder to fall asleep consistently – something Harvard researchers directly link to nighttime exposure.
The Bottom Line?
If you relate to any of these signs, it's worth trying blue light glasses. You may not realise how much better you'll feel until you start blocking the strain.
See the difference blue light blocking can make →