A Bloomberg Business news report examines the software and gear-based fixes that can help mitigate the effects of technology use before bed that can disrupt sleep.
To understand how, some (quick!) science: When you look at a bright screen, its glow essentially tricks your brain into thinking it is daytime and you should be awake and alert. “Because of the three to four billion years of evolution of light during the day and darkness at night, our body clocks are not expecting light at night,”says Randy Nelson, Ph.D., professor, and chair at the Department of Neuroscience at Ohio State University Wexner Medical Center.
The culprits here are special cells in your eyes that sense light and then tell your brain to suppress the production of melatonin—a hormone that makes you sleepy.