Exercise-associated hyponatremia cells in one area begin to increase in size, swelling occurs in the affected area. Swelling is commonly observed in hands, legs, and feet. Sodium is also important in regulating the amount of water that passes through the blood-brain barrier. Decreased sodium blood levels result in increased permeability of water across the blood-brain barrier. This increased influx of water causes brain swelling which leads to severe neurological symptoms. EAH is categorized by having a blood serum or plasma sodium level below normal, which is less than 135 mmol/l. Asymptomatic EAH is not normally detected unless the athlete has had a
Antireticular cytotoxic serum p. 28 Antireticular cytotoxic serum Anti-reticular Cytotoxic Serum is made from the blood of a rabbit that has been injected with homogenized cadaver spleen and rib marrow. In small quantities it can aid animal growth, but is toxic in large doses. It was first developed by Alexander A. Bogomolets in 1936. "It was a "miracle" that Professor Bogomolets made dying people walk with blood of cadavers circulating through their bodies, or hoped to extend our life-span for 150 years with the help of the A.C.S serum" - Red Miracle: The Story of Soviet Medicine by Edward Podolsky "World Book Encyclopedia",