 It's stronger as you get to the middle of it. Nothing like a light socket at home. It's very tolerable, but it's the whole idea that it's helping move the muscles, move the blood. It's an incredible experience. You know, that's interesting because in Machu Picchu, Aguascalientes, which means hot springs, there is a place like that. And the people from the town go there every evening to take a bath. And relax.