One: 1, push-ups (slow and fast breathing can not keep up, can not effectively exercise muscles), simple, convenient and effective. Exercise all your muscles. 2. Sit-ups, eliminate belly, and develop charming small abdominal muscles. 3. Do pull-ups with doorframes. Pay attention to the bearing capacity of the door frame. This is a little tired. 4. Dumbbells are simple and convenient. Just make a few if you have nothing to do. The effect on arm muscles is quite obvious. 5. Squat up. Exercising leg muscles is particularly tiring at the back, but the effect is quite obvious. It seems to help you grow taller. 6. Between the two doorframes, you can use the support of your back and feet to practice endurance and abdominal muscles. This is basically harmless. It is best to support the ground with your feet, hands and feet to keep your body off the ground. Lose your stomach and build your muscles.

Two: Exercise can improve people's physique. The best time for exercise is 14: 00 ~ 19: 00. People's activities are controlled by the biological clock, so it is more beneficial to health to arrange exercise time according to the law of the biological clock. Fitness in winter is best between 14:00- 19:00 in the afternoon. At this time, the outdoor temperature is relatively high, and the temperature of the human body is relatively high, and the physical strength is relatively abundant. It is easy to get excited, and it is easier to enter the state of exercise.

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