logo

9. Impact of Modern Technology

The blue light emitted by mobile phones, TVs, and tablets mimics the blue we see in the sky during the daytime. Our bodies have evolved to be awake during the day, so our brains release the hormone cortisol when we see blue-ish light. Cortisol wakes up the brain, making us alert and active. However, if you are browsing the internet or watching TV before bed, the brain cannot distinguish between the natural blue of daylight and the artificial blue of screens. Looking at screens up to an hour before bedtime can increase cortisol levels and reduce the effectiveness of the sleep hormone melatonin on your brain. As a result, we may have difficulty sleeping or experience lower-quality sleep, leaving us tired the next day.

modern technology and circadian rhythm sam thomas / Getty Images

Advertisement
Advertisement
Advertisement

Popular Now on Facty Health


Disclaimer

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.