Just eat a little more every day, such as 40 grams of rice, 2 ~ 3 jiaozi, and 5 grams of cooking oil. If you don't change your exercise habits, you will gain 2 pounds a year. In the long run, more than ten years is enough to make a person with normal weight become obese.

Eat some high-energy foods, such as cakes, instant noodles and potato chips. And you should do more activities on the basis of your usual activities. For example, a100g cupcake contains 348 kcal of energy. If you want to consume it, you need to jog for 50 minutes or walk for 87 minutes. If you do housework, you will have more time, and it will take about 105 minutes to consume! Even though it sounds healthy, eating100g soda cookies consumes more energy than cakes, reaching 408kcal. Jogging takes 58 minutes or 1 hour for 40 minutes to consume these energies.