It is difficult to lose weight by climbing stairs or running, so you need to control your appetite. The combination of the two can achieve good results. Obesity is due to eating too much, the quality is too good, its energy is not completely consumed by exercise, and it is accumulated and stored under the skin in the form of fat.
Reduce the intake, so that the energy transformed by food is completely consumed by exercise, and if you don't accumulate fat in your body, you won't get fat.
The reason why pigs are fat is that they eat more and exercise less.
The reason why people are fat is that they eat more and exercise less.
The picture below shows fat pigs and fat people who eat more and exercise less:
Losing weight is a painful thing. I don't know if you have the perseverance to endure the pain. Without perseverance, you will give up all your efforts.
If you want to lose weight, you need to exercise more and eat less.
Exercise makes you feel very tired, and eating less will make you feel hungry and uncomfortable. If you can stand the pain, you will lose weight.