|
|
Blood is approximately twice as thick as water because of the cells and other components found in it.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.
The horizontal fraction bar was introduced by the Arabs.
Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
![Astronaut Piers Sellers during the third spacewalk of STS-121, a demonstration of orbiter heat shiel](https://biology-forums.com/gallery/47/medium_12359_17_05_12_12_43_11.jpeg)
![Arthrocentesis. The aspiration of fluid is a common treatment for joint injuries resulting in inflam](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_29_26_10080144.jpeg)