|
|
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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.
The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
![Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than](https://biology-forums.com/gallery/47/medium_274477_04_02_15_12_31_04_206112187.jpeg)
![Psychoactive substances: (left) Psilocybin is obtained from a species of mushroom; (right) LSD is ...](https://biology-forums.com/gallery/28/medium_482573_28_04_17_1_01_58_285241955.jpeg)