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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.
Thyroid conditions may make getting pregnant impossible.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.