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Knee effusion, informally known as water on the knee, occurs when excess synovial fluid accumulates in or around the knee joint. It has many common causes, including arthritis , injury to the ligaments or meniscus , or fluid collecting in the bursa , a condition known as prepatellar bursitis .
The television series MythBusters investigated the effectiveness of Chinese water torture, and while it was found quite effective in producing distress, they noted that the restraining equipment was providing most of the effect by itself. When testing the dripping water alone on a relaxed, unrestrained subject, it was found almost negligible. [6]
Edema (American English), also spelled oedema (British English), and also known as fluid retention, dropsy and hydropsy, is the build-up of fluid in the body's tissue, [1] a type of swelling. [4] Most commonly, the legs or arms are affected. [ 1 ]
Swimming induced pulmonary edema (SIPE), also known as immersion pulmonary edema, is a life threatening condition that occurs when fluids from the blood leak abnormally from the small vessels of the lung (pulmonary capillaries) into the airspaces (alveoli).
It is sometimes described as feeling like acid under the skin. Burning dysesthesia might accurately reflect an acidotic state in the synapses and perineural space. Some ion channels will open to a low pH, and the acid sensing ion channel has been shown to open at body temperature, in a model of nerve injury pain. Inappropriate, spontaneous ...
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Chinese water torture, or use of a dripping machine, [17] is a mentally painful process in which cold water is slowly dripped onto the scalp, forehead or face for a prolonged period of time. [17] The process causes fear and mental deterioration of the subject.
Another possible cause of exercise induced nausea is overhydration. Drinking too much water before, during, or after extreme exercise (such as a marathon) can cause nausea, diarrhea, confusion, and muscle tremors. [4] Excessive water consumption reduces or dilutes electrolyte levels in the body causing hyponatremia. [4]