Did you know?
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
In 1979 Islamic militants held American embassy workers hostage in Tehran.
The steps in the hearing process. (1) Sound waves enter the outer ear and travel through the ear ...
Geographies of Language
Conservation biology arose in response to biodiversity loss
Brain nerve and hearing
North American Indigenous Woman