Dr. Dan Siegel, clinical professor of psychiatry at the UCLA School of Medicine, lays out all of the negative effects bedtime screen viewing can have on the brain and body.

The majority of us need seven to nine hours of sleep in order to clean out toxic chemicals in our brains, allowing us to maintain mental and physical health for the day and years ahead. Siegel recommends giving ourselves an hour buffer between our electronic screens and bedtime so that our brains have a chance to switch gear and ensure a restful night's sleep.