Blue Light & Sleep: Does Your Phone Matter?
Your late-night scroll may be costing you sleep — though the reason is a bit different from the "blue light" headlines.
Light and content
Bright light in the evening can suppress melatonin and delay sleep. But the bigger problem is often stimulation — doomscrolling, work emails and exciting videos keep your brain switched on well past lights-out.
What to do
- Dim lights and use night mode in the last hour.
- Set a "screens off" cut-off before bed.
- Keep the phone out of the bedroom if you can.
Blue-light glasses help a little; a consistent wind-down and getting off the phone help far more.
Quick answers
Do blue light glasses work?
Modestly. Reducing bright screens and stimulating content before bed matters more.
Is my phone ruining my sleep?
Often the content keeps you up more than the light. A screens cut-off usually helps a lot.
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