1, from 3 pm to 5 pm, there is enough oxygen in the air, which can keep a relaxed and happy mood, increase the oxygen intake in the lungs and improve the training intensity.

2. During this period, after breakfast and lunch, the human body has sufficient glycogen reserves. When the human body is doing strength training, it needs glycogen, a functional substance that has no energy provided by the human body, so it is very important to ensure enough glycogen.

Exercise after 3 or 3 o'clock. After lunch break, the human body is more energetic, full of vitality and passion, and can avoid injury.

4. If you exercise in the morning, the oxygen content in the air is thin, the oxygen intake in the lungs is not enough, and the brain is prone to hypoxia during exercise.

5, morning exercise Because after a night of fasting, the human body is usually in a state of hypoglycemia in the morning, which is not suitable for exercise.

6. If you exercise at night, it will lead to nervous excitement and reduce the quality of sleep.

Based on the above factors, it is better to exercise chest muscles from 3 pm to 5 pm.

What to eat after training:

After training, you need to take a lot of protein and replenish enough water. Because muscles are made up of protein and water.

Foods containing protein: eggs, milk, lean meat, fish, etc. Was eaten after an hour of training.

Besides protein, we also need to take in sugar and replenish glycogen in time. Sugar food is mainly staple food: steamed bread, rice, pies, bread and so on. In addition, some fresh vegetables and fruits are added to ensure that vitamins, minerals and other nutrients are fully supplemented, which is more conducive to nutrient absorption and muscle growth.