I remember that there is a stovepipe method, that is, lying on the bed, leaning your legs against the wall and making a 90-degree right angle with your body. Can this method really stovepipe? What principle? I'm doing it now. It's been three months now! The effect is very good. I am that kind of muscle. I'm afraid I'm thicker if I don't run stairs, but the effect is really good. The point is persistence. About half a month, the numbness of the lower limbs has been reduced a lot. In the last five minutes, some people felt uncomfortable, but they really couldn't start. It was very uncomfortable, but I also lost weight. I'm not afraid of having a little more belly at night, but I insist.