By Harshit
October 14, 2025
Blue light is a high-energy, short-wavelength light found in sunlight and digital screens. It helps regulate sleep cycles but can harm your body with overexposure.
Melatonin signals your body to sleep, but evening screen time suppresses it—delaying sleep and lowering its quality.
Late-night blue light keeps your body alert by boosting cortisol, the stress hormone, making it harder to unwind and fall asleep
Blue light–induced hormonal disruption can lower insulin sensitivity and disturb appetite hormones, raising the risk of weight gain and metabolic problems.
Reduced melatonin and elevated cortisol can heighten anxiety, irritability, and mental fatigue, showing how closely your hormones affect mood balance.
Prolonged blue light exposure can strain your eyes and disrupt sleep cycles, indirectly affecting hormonal balance and your body’s natural rhythm.
ChatGPT said: Poor sleep can disrupt estrogen and testosterone levels, potentially affecting fertility, libido, and overall hormonal balance.
Use night mode or blue light filters on devices, avoid screens an hour before bed, choose dim warm lighting in the evening, and get natural sunlight during the day to support your circadian rhythm.