Personally, I think smoking can not only make you thin, but also make you fat. We all know that smoking will hurt the lungs, but in fact, smoking will not only hurt the lungs, but also hurt the whole respiratory system, including the stomach. When I quit smoking for more than two years, I smoked for more than a month because of various troubles and pressures. I can clearly feel the harm that smoking does to your stomach, for example, defecation once a day becomes many times. We get fat because our digestive system is not strong enough to fully digest and metabolize what we eat. These things will turn into fat and accumulate in the body, which is the reason why modern people are obese! So smoking is impossible to lose weight!