Ann: Annual Report to shareholders , page-39

btw Samson...on those Kenyan freakish runners.yes read that last night....

It is useful to observe the running and breathing techniques of people in regions where long-distance running is a part of the culture. Kenyan and Ethiopian runners have a reputation for excellence at long-distance running in international athletics. The Tarahumara native Indians of Mexico are able to run up to 62 miles a day, which is well above the 31 miles per day average typical of an elite athlete. Studies of the Tarahumara show that these exceptional runners only breathe through the nose, although some use a technique of exhaling through a partially open mouth.