Zhao Xiaolan, director of the Physical Examination Center of Southwest Hospital, does not advocate white-collar workers to exercise at noon. She said that every day from 3 am to 5 am and 12 pm to 2 pm is the trough of all aspects of the body. If you don't do well in strength, speed and endurance, you are more prone to fatigue and sports injuries.

Half an hour's rest at noon to 1 hour is enough. Foreigners don't have the habit of taking a nap because their working hours are flexible.