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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
There are 20 feet of blood vessels in each square inch of human skin.
The average office desk has 400 times more bacteria on it than a toilet.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.
![The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th](https://biology-forums.com/gallery/47/medium_14755_28_08_12_1_42_27_8234754.jpeg)
![Diverticula in the sigmoid colon. Diverticulosis is almost always located in the descending or sigmo](https://biology-forums.com/gallery/47/medium_18099_24_10_12_5_34_11.jpeg)