|
|
Did you know?
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.