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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.
Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.