This kind of exercise, such as riding a horse, should be done in the morning, but it is not suitable for evening. Will it be bad for a while, but not for a long time? People grow up in nature, and the biggest law of nature is the change of four seasons: spring, summer, autumn and winter, cold and warm spring and summer, long autumn harvest and winter storage, spring, summer, autumn and winter should be quiet, day after day, do exercise before noon, properly converge in spring, summer and evening, and keep pace with the times in autumn and winter, so as to help you recover from one day's fatigue and cope with the next day's work. This is the way to maintain health in the four seasons. If you think this four-season regimen is unscientific, then you can ignore what I said above.