If it is signed on the basis of equality and voluntariness, it should be effective. This is called a conditional civil juristic act. If you want to break the contract, the other party can do it according to the contract.

Losing weight belongs to a behavior pattern aimed at reducing excess fat and weight of human body. Moderate weight loss can reduce the risk of obesity and improve the health level of patients with obesity complications. There are various slimming concepts and slimming products on the market, please choose them carefully.