Q: Can "blue blocker" glasses really cancel the light from electronics that makes it hard to fall asleep?
OZ Says: You're right, potent blue light emitted from electronic screens and some lightbulbs is a snooze-crusher—it suppresses melatonin, the hormone at the control switch of our sleep and wake cycles. The more of the light you get around bedtime, the more you interfere with those cycles, and the lower your sleep quality could be. So "blue blocker" glasses seem smart. The trouble: "There hasn't been enough research to say for certain they'll help you sleep better," says James Phelps, M.D., who researches light's effects on sleep. For now, try these tips.
The best thing: Avoid screens for at least an hour before bed (good for your stress level, too).
Next best: Keep screens at least 14 inches away from your face (not so easy with a smartphone, we'll warn you) and turn down the brightness.
Might work: Try reversing the type on your e-reader so you're reading white type on a black background instead of black on white.
And note: Not all of these glasses nix 100% of blue light, and you can't always tell how much a specific pair will block.
This story originally appeared in the April 2015 issue of Dr. Oz The Good Life.