Natural light helps to regulate your biological clock so exercise outdoors if you can.

自然光有助于调节你的生物钟，所以如果可能的话，到户外去运动。

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Walk and exercise, walking to hard. Sit like a clock, standing like pine, line is like the wind.

走路也是锻炼，走路要用劲。坐似钟，立似松，行似风。

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When choosing a time of day to exercise, paying attention to your body clock can improve results.

在选择每日锻炼时间的时候，关注生物钟能提升锻炼效果。

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He counsels people that the best time to exercise is the one that works with their body clock and fits with their schedules.

FORBES: Best Time To Hit The Gym

So all the artists will start makeup before nine o'clock, and then we waiting director to come and then we will practice kung fu and do many exercise.

CNN: Interview with Gordon Liu