Running is a method of terrestrial locomotion by which humans and other animals move rapidly on foot. Running is a gait with an aerial phase in which all feet are above the ground (though there are exceptions). Running in humans is associated with improved health (both physical and mental health) and life expectancy. Running has been described as the world's most accessible sport.
"It's very hard in the beginning to understand that the whole idea is not to beat the other runners. Eventually you learn that the competition is against the little voice inside you that wants you to quit" -Dr George Sheehan, best-selling running author