Bullying, sleep deprivation, and relationship stress are just a few of the dangers of spending too much time online. This infographic shows some surprising statistics on the toll the internet has taken on our health and how much worse things could be in the future.

The average American spends 8 hours a day staring at a screen, which leads to eyestrain and other physical ailments. 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. (We’re not sure how much the growth rate accelerated when the internet started hitting the mainstream.)

The American Psychiatric Association has not technically classified internet addiction as a mental health disorder, but this could change. In a study of 216 kids, the 30 percent who showed signs of depression were also the most prolific web users.

Insurance.com has visualized these and other statistics in the chart below.