Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Excessive alcohol use costs the country approximately $235 billion every year.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
Development of the human brain.
stage I pressure ulcer
Hormonal Control of Development of the Internal Sex Organs