Bicycling. It is a good way to lose weight. Ride your bike every day. Ride at a medium to high speed. Medium is fine. Ride for 40 minutes without a break. At the end of 40 minutes, slow down a bit. That's 4 hours + and you'll see results the same day. I did it once. I rode 50 kilometers for more than 6 hours. My legs were a little swollen. When I got home and went to bed, they were a little thinner. I used a ruler to measure it and it was really thin.
To pedal slowly, the speed is set at a more strenuous a little better, if you pedal fast, a short period of time will be refined muscle, muscle will increase the human metabolism, help fat burning. However, it is impossible to lose weight when you have become muscular. By that time, the muscle part will be impossible to be thin again. (Note: So do it slowly, with a little more strength, excessive will hurt the muscles)