Oct 14, 2025
Blue light is a high energy, short wavelength light found naturally in sunlight and artificially in phone, computer, and LED screens. It helps regulate your body’s natural rhythms but can become harmful with excessive exposure.
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Melatonin tells your body when it’s time to sleep. Evening screen time suppresses it, delaying sleep onset and reducing sleep quality.
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Late night blue light tricks your body into staying alert, increasing cortisol (the stress hormone) and making it hard to relax.
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Hormonal disruption can affect insulin sensitivity and appetite-regulating hormones, increasing the risk of weight gain and metabolic issues.
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Lower melatonin and higher cortisol can worsen anxiety, irritability, and cognitive fatigue, your hormones directly influence mood regulation.
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Chronic exposure may also strain the eyes and indirectly affect hormonal regulation by disturbing sleep patterns and circadian rhythm.
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Disrupted sleep can affect oestrogen and testosterone levels, potentially impacting fertility, libido, and overall hormonal balance.
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Use night mode or blue light filters on devices. Avoid screens at least 1 hour before bed. Opt for dim, warm lighting in the evening. Get natural sunlight during the day to regulate circadian rhythm.
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Post-meal exercises that aid digestion