|
|
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.
Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
![European Rabbit in Shropshire, England, infected with myxomatosis, a disease caused by the Myxoma vi](https://biology-forums.com/gallery/47/medium_27581_22_04_12_4_41_49.jpeg)
![Erythroblastosis fetalis. (a) The condition occurs with an RH+ father and RH– mother. (b) First preg](https://biology-forums.com/gallery/47/medium_14755_16_10_12_12_29_18_9451500.jpeg)
![This photograph of a Union soldier just freed from Andersonville prison, stunned and enraged norther](https://biology-forums.com/gallery/47/medium_376063_22_08_15_11_28_16_22363695.jpeg)