At the end of a long day, it’s tempting to turn on Netflix, scroll through Instagram, or catch up on emails before hitting the pillow, but try to refrain. While this may feel like relaxing or unwinding, the light from your phone or computer screen is sending opposite signals to your brain.
Sleep studies have found that blue light from phone or laptop screens isn’t calming at all; it actually inhibits melatonin production. Melatonin, a hormone produced in the pineal gland, plays a large role in regulating wakefulness, so interfering with your body’s natural system can spell trouble for your sleep. Try picking up a book or jot down notes in a journal before bed instead of jarring yourself awake with harsh sources of light. If you really must finish up work or homework late into the night, keep brightness levels as low as possible.