Is your breathing efficiency high enough?
Hold the lighted candle in one hand, then straighten your arm and try to blow out the candle in one breath. If you can't blow out the candle, it means that your breathing is short, your breathing efficiency is not high enough, and the cells in your body may often be in a state of insufficient oxygen supply.
Improvement: Swimming is one of the most effective ways to activate lung function, increase vital capacity and improve respiratory efficiency. In addition, diaphragm breathing should be used in daily life to improve breathing efficiency. Learn to breathe gently, slowly and smoothly, keep the length of breathing consistent, pay attention to the uniform strength of exhalation and inhalation, and feel the ups and downs of diaphragm.
Is your blood circulation good enough?
Take the stairs in the stairwell as props to complete the action of going up and down the stairs, going up and down 20 times a minute for 3 minutes. Then rest for 30 seconds, then measure your heartbeat and record the number of heartbeats within 30 seconds. Check the table below to see if your blood circulation is good enough and the efficiency of oxygen delivery is high enough.
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