explain xkcd:Editor FAQ
A rushing sound in the ears is another Hearing X3 symptom or sound of tinnitus that can particularly be found in people who suffer from high blood pressure, and so can hear clearly the rushing sound of the blood pumping through their ear drums. Also it is thought that the aspirin is liable to cause this sound as it thins the blood, enabling a stronger flow perhaps - this is however open to conjecture.
Tinnitus, also known as ringing in the ears, can be caused by many things. Some of the causes of this ailment are external, such as exposure to loud noise, while some are internal, such as certain types of inner ear infections or disease. While the symptoms of tinnitus are often the same in people who suffer from it, the treatment for each person may vary a great deal. It has been estimated that nearly one in five people will suffer from tinnitus by the time they reach their mid-fifties.
In simple terms, tinnitus is the sensation of hearing noise, often classified as a ringing, when there is no noise actually present. Some of the sounds that those hear, in addition to ringing, include a whistling sound, humming, or a dull sort of thrum. In all cases, there is no actual external cause or source of the noise. For some individuals, the sound may be constant and for others it may be intermittent, coming and going for no apparent reason.
