What Is Blood Oxygen Saturation, and Who Needs to Pay Extra Attention to It? Do You Know?

Blood oxygen saturation is an important indicator that reflects the oxygen content in the blood and is essential for maintaining normal physiological functions of the human body. Normal blood oxygen saturation should be maintained between 95% and 99%. Young people will be close to 100%, and older people will be slightly lower. If the blood oxygen saturation is lower than 94%, there may be symptoms of hypoxia in the body, and it is recommended to seek medical examination in time. Once it falls below 90%, it may even cause hypoxemia and induce critical illnesses such as respiratory failure.

Especially these two types of friends:

1. Elderly people and people with basic diseases such as hypertension, hyperlipidemia, and coronary heart disease may have problems such as thick blood and narrow blood vessel lumen, which will aggravate hypoxia.

2. People who snore seriously, because snoring may cause sleep apnea, causing hypoxia in the brain and blood. The blood hydrogen level may drop to 80% after 30 seconds of apnea, and sudden death may even occur once the apnea exceeds 120 seconds.

It should be noted that sometimes hypoxic symptoms such as chest tightness and shortness of breath may not occur, but the blood oxygen saturation has dropped below the standard level. This situation is classified as “silent hypoxemia.”

In order to prevent problems before they occur, it is recommended that everyone prepare home blood oxygen measuring equipment or seek medical testing in time. You can also wear some smart wearable devices such as watches and bracelets in daily life, which also have blood oxygen detection functions.

In addition, I would like to introduce to my friends two good ways to exercise cardiopulmonary function in daily life:

1. Do aerobic exercise, such as jogging and brisk walking. Persist for more than thirty minutes every day, and try to try 3 steps to 1 exhale and 3 steps to 1 inhale during the process.

2. Eating a reasonable diet, quitting smoking and limiting alcohol consumption can also help increase blood oxygen saturation and maintain good health.