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Author Question: Which type of hearing loss occurs when sound waves are prevented from passing from the air to the ... (Read 126 times) |
The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Blood is approximately twice as thick as water because of the cells and other components found in it.
There are more nerve cells in one human brain than there are stars in the Milky Way.