Articles in Who Knew?
Viruses can not replicate outside of a living cell. Said another way, a virus needs to be in a living host in order to reproduce because it lacks the necessary cellular structures to do so. …
When you think of a sprain, think of an ankle, the most common sprain people get (25,000 ankle sprains/day according to NIH). Ankles have lots of ligaments that attach bone to bone and it’s these …
The bladder holds approximately 250-350 cc of urine and when it’s completely full, about 600 ccs (17 ounces or so). In extreme circumstances, it can hold more but this would generally cause much pain and discomfort.
When …
As we age, our respiratory tract becomes less elastic and more rigid including the tiny air sacs where oxygen exchange occurs. In addition, our chest wall becomes a little more rigid, not expanding in the …
Vitamin D (which acts like a hormone in our bodies) and its precursors play many roles in the body. It helps:
the body absorb calcium
play a role in bone growth
prevent rickets in children and osteomalacia (adult form …
The average person has between 2 and 4 million sweat glands. Of these glands, there are approximataely 3,000 sweat glands per square inch on the feet and hands – more than under the arms. Men …
Calcium and Vitamin D go hand-in-hand. Vitamin D is important because without it, the body couldn’t absorb calcium. During periods of rapid bone growth (during infancy, childhood and teenage years), the body requires increased amounts …
Studies have shown that an intake of 220 grams of alcohol daily for a period of 4 weeks, began to reduce the level of testosterone produced after only 5 days. This effect continued throughout the duration …
Have you noticed that after a while of being exposed to an obnoxious smell, you stop smelling how bad it is? The brain quickly adapts to the bad smell – in fact in as little …
The small intestine digests and absorbs the nutrients that are carried to it from the stomach. It averages about 21 feet and is divided into three sections: the duodenum, (about 10 inches), the jejunum (about …
