Do you suffer from eye strains? Bad posture? Sleep deprivation? Then you might be spending too much time online. The average American devotes about eight hours a day scanning the web—be it for work or pleasure, or both—which can ultimately lead to any number of physical infirmities.

"This may explain the uptick in the number of Americans who need glasses, which has risen from 25 to 41.6 percent in the last 30 years," writes Devon Glenn on Social Times.

Check out the infographic below.

Infographic Internet Addiction
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[via Social Times]