The bottoms of the feet and the armpits and the tongue are three places where lots of toxins are released - that's why they have lots of odors if they aren't cleaned and or left to air. That's why MH calls himself 'the barefoot herbalist' - because he only wears socks or shoes when he absolutely must, the rest of the time he goes barefoot. I've started going barefoot at all times in my house, and my feet are softer and smoother than they were before, oddly. Also, they never smell anymore. I dry brush my feet every day now.