|
|
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.
Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.
Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
![Balloon angioplasty: (A) deflated balloon catheter is approaching an atherosclerotic plaque; (B) pla](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_24_29_8536562.jpeg)
![Air-conditioning refrigerant oil must be kept separated from other oils because it contains traces ...](https://biology-forums.com/gallery/29/medium_548020_25_05_17_3_10_43_295142074.png)