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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.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.