It's best to indicate whether it's male or female ... For a boy, it's best not to lose weight, but to turn it into muscle ... In this case, you can try to do some interesting sports, such as table tennis, which will focus on arm muscles ... Actually, it's better to go to the gym ... It's a little difficult for a girl ... but you can also try to do some sports. For example, lifting dumbbells ... push-ups can be said to be suitable for both men and women ... The key is to insist on ... choosing the same exercise and doing 5 groups every day, each group 10 or 20 beats. Sticking to it for a month should be effective ... the key is to stick to it ... if you don't stick to it, you will never want to lose it!