Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Did you know?
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
The mammalian heart and the route blood takes through it.
Conduction system of the heart.
HEART
Unlabeled Fetal Pig Heart
SSRIs block the reuptake of serotonin into nerve terminals, resulting in increased serotonin levels.