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Did you know?

There are more bacteria in your mouth than there are people in the world.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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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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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Succession in the intertidal zone involves colonization and competition for limited space among spec Succession in the intertidal zone involves colonization and competition for limited space among spec
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th
Sample Exercise Program for Limited Older Adults (cont.) Sample Exercise Program for Limited Older Adults (cont.)
Needle-nose pliers are used where there is limited access to a wire or pin that needs to be ... Needle-nose pliers are used where there is limited access to a wire or pin that needs to be ...
Minerals are nonrenewable resources in limited supply Minerals are nonrenewable resources in limited supply
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