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Author Question: The leading cause of nongonococcal urethritis is A) Chlamydia psittaci. B) Chlamydia trachomatis. ... (Read 68 times) |
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
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.
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.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.