Blue Light Health Risks

We all love our phones, tablets, and TVs, but the blue light their screens give off can dim your health. How? At night, your body releases the hormone melatonin down your sleep. Any kind of light can delay this from happening, but blue light has the biggest effect. You'll have a harder time falling asleep, and you may not snooze as deeply. After a while, it can throw off your body's internal clock. And early research links this to health risks as serious as diabetes and cancer.

So set up good sleep habits. Shut off screens about two hours before you call it a night. Can't bear going to bed without your favorite device? See if it has a setting to adjust its color or filter out blue light. If not, you can download an app that gives you this option. You'll crank up the wattage on your sleep and health.