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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.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.