I started exercising on my weirdo little pedal bike tonight. I cant believe i used to work up a sweat on it. I could barely move the pedals an inch it felt like, and still i got winded and had to slow down. But i kept at it or on it for an hour. My legs / knees were a little tingly when i went to brush my teeth. Today is the first day of the rest of my life. It felt good.