|
|
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.
Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
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.
The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
![Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ...](https://biology-forums.com/gallery/30/medium_548020_08_06_17_6_20_42_305321215.jpeg)
![Neck stretch. Rest the receiver’s head on the palm of your right hand, taking a firm hold on the ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_10_55_51_33589906.jpeg)