Practical
Blue Light Exposure Calculator
Estimate daily blue light exposure from screens and its impact on sleep
Blue light from screens suppresses melatonin production in the evening, delaying sleep onset and reducing sleep quality.
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Tip: Set devices to Night Mode from 8pm. Better still, put screens away 1 hour before bed for the best sleep quality.
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Fun Fact
The sun emits far more blue light than any screen - what matters most is screen use in the 2-3 hours before bed.
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