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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.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
The longest a person has survived after a heart transplant is 24 years.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.