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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Cyanide works by making the human body unable to use oxygen.
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.