Koreans have some good knees. I'm always amazed at how easily--and frequently--Koreans choose a squat for leisurely rest. It seems they can hold the position for indefinite periods of time, too. If I squat for more than two minutes, the look on my face is far from the content, relaxed demeanor of the nimble Koreans around me. And as you'll see in the photos, age appears to have no bearing on squatting ability or endurance. I'm truly in awe.