SPEAKER: 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.
