Experts also warn that emotionally stimulating content before bed — stressful news, arguments online, or endless scrolling — can keep the nervous system activated long after the screen is turned off.
💡 Artificial Light May Be Confusing Your Brain
Humans evolved to sleep in darkness. But modern bedrooms are often filled with artificial light from alarm clocks, televisions, LED indicators, streetlights, and electronic devices. Even small amounts of light during the night may affect the body’s natural circadian rhythm.
The circadian rhythm acts like an internal clock that controls sleep, hormones, digestion, energy levels, and metabolism. When this rhythm becomes disrupted, the body may struggle to maintain healthy patterns.
Some studies suggest that chronic sleep disruption may be linked to:
Increased stress levels
Weight gain
Poor concentration
Mood changes
Weakened immune function
Higher risk of anxiety and depression
🧠 Your Brain Cleans Itself During Sleep
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