There is an answer to the epidemic of short-sightedness - and it's not what you'd expect.
Studies of myopia (short-sightedness) tested children for the amount they read, the amount they watched computer/tv screens, the amount they played sports - none of these were factors.
What mattered was the amount of time they spent outside.
Send your kids outside more, to reduce the likelihood that they'll need glasses.
Reported in New Scientist this month.
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