|
|
The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
![Gomphidae is an Odonata family that contains about 90 genera and 900 species. They are commonly refe](https://biology-forums.com/gallery/47/medium_12359_26_04_12_5_13_53.jpeg)
![Tooth development and eruption are commonly used to assess age in the subadult skeleton. Deciduous (](https://biology-forums.com/gallery/47/medium_273688_23_02_15_8_21_18_208891445.jpeg)