|
|
There are more bacteria in your mouth than there are people in the world.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
![Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_39_50_20561464.jpeg)
![A noose hanging from a “Liberty Tree” reveals this artist’s bias: The “tar-and-feathering” of a Brit](https://biology-forums.com/gallery/47/medium_374628_15_08_15_11_50_52_222361412.jpeg)