Fitness and Exercise
"In America, the passion for physical well-being is not always exclusive, it is general; and if all do not feel it in the same manner, yet it is felt by all ... The love of well-being is now become the predominant taste of the nation; the great current of human passions runs in that channel, and sweeps everything along in its course."
Alexis de Tocqueville, Democracy in America (1835)