STORY AT-A-GLANCE
- Evidence from a small study found that blue light helped mice sleep better — but before we change the way we think about blue light’s effect on humans, studies need to be done on humans, at least one researcher says
- Blue light is linked to many well-documented health risks, including sleep problems
- The use of blue light-emitting smartphones, computers, tablets and e-readers before bedtime is linked to sleep disturbances
- Whether future research shows blue light disturbs sleep or not, it’s best to avoid it and let your natural circadian rhythm work