The altitude that is most beneficial to people's longevity.

The altitude that is most conducive to people's longevity is generally between 1400 meters and 2000 meters. According to the experimental study of physiological health, the altitude most suitable for human survival is 500 meters to 2000 meters. Longevity areas are mostly between 1200 and 1500. At an altitude of 1500m, the negative oxygen ions known as "Changshousin" are the densest, which can promote metabolism, strengthen nervous system and improve immunity. Living here for a long time has obvious effects on asthma, bronchitis, hypertension, migraine and coronary heart disease. But above the altitude 1500m, different people may feel some discomfort. Altitude, also known as absolute altitude, refers to the height difference between a certain place and sea level, and the average sea level is usually used as the calculation standard.