|
|
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.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
Cyanide works by making the human body unable to use oxygen.
![In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_222991202.jpeg)
![Action! Children love to talk about the actions of adults and animals, which provides a natural way ...](https://biology-forums.com/gallery/47/medium_667187_21_02_17_6_37_27_256432380.png)