Your wife may be in a bad mood because of obesity at present and won't listen to your advice. You can try this, don't always tell her to lose weight, you can help her from daily life or help her lose weight with actions. Cook more low-calorie and full-bodied meals in life, and let her eat less than before. You can help her with her meal. If your wife used to eat two full bowls, you can give her two eight bowls. In addition, you can ask her for a walk every morning and evening, ride a bike and play badminton together when you are free, and find a sport that suits her. Losing two or three pounds a month is also a good start. After all, losing weight is a long process. Let her lose weight unconsciously, she will feel relaxed, no longer hate and resist losing weight, but have the confidence to start losing weight, and then the effect will be more ideal.