People in Copenhagen appear to be significantly fitter than those in the United States, evidenced by widespread cycling and swimming in cold harbor water across a wide range of ages.

“it did strike me that people in Copenhagen are dramatically fitter than they are in the United States I mean first of all everyone's bicycling everywhere yeah um not many people wearing sunglasses so trying to extract as much Photon energy from the Sun as possible which I support as everyone knows that's I'm a big fan of getting Sun but also um when we did see swimmers um they were swimming in this cold water and like it was nothing and their the range and age of the swimmers was what was remarkable”