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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
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.