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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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.