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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
Did you know?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Did you know?
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
![Middle adulthood can bring large-scale changes in lifestyle and interests, as illustrated by this ph](https://biology-forums.com/gallery/47/medium_6_31_05_15_8_20_40_219642025.jpeg)
![The “Flat Head” (Chinook) Indians acquired their name through shaping in infancy, as shown in a diag](https://biology-forums.com/gallery/47/medium_374628_16_08_15_9_52_09_222631693.jpeg)