2. There are many ways to be aerobic, and you don't have to hiit. When we want to play a game, we all climb stairs with oxygen or climb on the treadmill without running a few kilometers. Some people say that climbing stairs hurts your knees. After all these years, my knees are fine. I climbed the stairs and went downstairs to take the elevator.
It is better to combine various ways.
3. If you want to lose weight, halve carbohydrates, and you will lose weight if you practice casually. If you find it difficult, step by step, then the first step is to reduce carbohydrates at night, after a while, the second step is to reduce carbohydrates in the morning, and then adapt to it for a while. The third step is to reduce carbohydrates at noon. Don't miss dinner. Skipping dinner is harmful to your health.
4. If you are really greedy, you can have a high fever twice a week, and if you are not fat, you can eat twice more. Don't be afraid.
Fitness has nothing to do with self-discipline, but a habit and hobby, just like playing games, except that some people like to play games while others like to sweat in the gym.