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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.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.