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There are more bacteria in your mouth than there are people in the world.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
![Auguste Comte (1798–1857), who is credited as the founder of sociology, began to analyze the bases ...](https://biology-forums.com/gallery/47/medium_599494_07_11_16_11_58_21_24077416.png)
![Max Weber (1864–1920) was another early sociologist who left a profound impression on sociology. ...](https://biology-forums.com/gallery/47/medium_599494_07_11_16_11_58_21_240831383.png)