http://www.telegraph.co.uk/lifestyle...hydration.html

“There is not a single report in the medical literature of dehydration being a proven, direct cause of death in a marathon runner,” adds Prof Noakes. “But EAH, caused by drinking excessively, has resulted in at least 12 deaths among sportsmen and women.” As well as Rogers in 2007, fatalities include a female US marathoner in 1993 and an American footballer, Paul Allen, in 2010. “In addition,” says Noakes, since 1981, “there have been over 1,600 documented cases of EAH worldwide.”

Intossicazione acuta da acqua - Wikipedia

https://en.m.wikipedia.org/wiki/Water_intoxication