Written by: Dr Subita Alagh
7 August 2025
Feel wide awake at midnight? Blue light could be silently disrupting your sleep cycle.
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It’s a high-energy wavelength in the visible spectrum. Natural sunlight has it, and so do your screens.
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Blue light blocks melatonin, the hormone that makes you feel drowsy. The result? Delayed and poor-quality sleep.
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- Smartphones - Laptops - TVs - LED & fluorescent bulbs
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- Use night or dark mode - Limit screen time 2–3 hours before bed - Wear blue light-blocking glasses - Switch to red nightlights
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Try setting an alarm 1 hour before bedtime as a reminder to unplug from devices.
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Chronic sleep issues may need medical guidance. Consult a doctor online via Tata 1mg for expert help.
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