|
|
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
Cyanide works by making the human body unable to use oxygen.
![Filter in the vena cava prevents an embolus from traveling to the heart, lungs, or brain; A, Greenfi](https://biology-forums.com/gallery/47/medium_18099_24_10_12_3_18_58.jpeg)
![Some column-mounted ignition switches act directly on the contact points, whereas others use a link ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_5_27_32_29780449.png)