|
|
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).