|
|
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
There are more bacteria in your mouth than there are people in the world.
![Obstetrical sonography and fetometry. (a) The procedure is performed in a clinical setting. The inst](https://biology-forums.com/gallery/47/medium_14755_16_10_12_12_30_00_94542138.jpeg)
![The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_23_09_100491445.jpeg)
![Evidence of regional continuity: (a) The anatomically modern Willandra Lakes Hominid 50 calvaria fro](https://biology-forums.com/gallery/47/medium_273688_23_02_15_7_03_14_20830253.jpeg)