important marathon-related health risk facing runners everywhere. The history of exercise-associated hyponatremia is closely tied to Dr Tim Noakes, a South African sports medicine expert and author of The Lore of Running. In the 1970s Noakes was a devoted
a few triathlons way back in the mid-1980s. There was just one problem: they hit the wall when they added cycling and swimming to their running. The demands of three-sport training were too much, so they cut back their running from six days a week
