our Nights May Be Quietly Damaging Your Health — Here’s What Sleep Exper Humans evolved to sleep in darkness. But modern bedrooms are often

When melatonin levels are disrupted, the brain may struggle to enter deep, restorative sleep. Even if you manage to sleep for several hours, the quality of that sleep may be reduced. Many people wake up feeling tired, mentally foggy, or emotionally drained without understanding why

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.