How to recover quickly after doing incremental exercise and reaching the maximum loading? We discovered that taking the hyperoxia air to rest in recovery period will be better than only taking the natural air among rising the SaO2, lactate metabolism, and recovering to normal value of heart rate. Therefore, we suggest to do exercise least three or more days a week, develop the habit of regular exercise through walking, jogging, swimming, cycling or mountain climbing and other sports to improve cardiovascular and strength endurance. Moreover, Taking hyperoxia during recovery period after exercise will help quick recovery, improves or maintains healthy.