|
|
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Thyroid conditions may make getting pregnant impossible.
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.
![Coronary circulation. (A) Coronary vessels portraying the complexity and extent of the coronary circ](https://biology-forums.com/gallery/47/medium_14755_01_10_12_7_50_12_91771091.jpeg)
![Bidirectional Thumb Pressure on Plantar Surface. Apply bidirectional thumb pressure over the entire ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_9_03_12_33505828.jpeg)