Of course, if you use it, it will still be helpful to your health, but the effect will not be too obvious.
Let's talk about losing weight (reducing stomach) first. Running can exercise and help you lose weight. Since other parts of the body are not fat, you can focus on reducing your stomach, such as push-ups, sit-ups, swimming, gymnastics/aerobics, etc. I suggest you go to the gym as a member, have systematic weight-loss equipment and a professional coach. Partial weight loss believes that 1 month is valid.