Does low altitude have an effect on the human body?

In general, low altitude can have an impact on the human body. If you experience any physical discomfort, seek medical help promptly. The detailed analysis is as follows:

For individuals who have lived at high altitudes for a long time, suddenly moving to a low-altitude area may cause symptoms of maladaptation, such as chest tightness, nausea, loss of appetite, and poor sleep. This could be due to a phenomenon known as "plains reaction," which requires some time to adjust to. In low-oxygen environments, the heart beats faster to increase blood flow and meet the body's oxygen demands. This may increase the burden on the cardiovascular system, and prolonged strain could elevate the risk of cardiovascular diseases. Additionally, ultraviolet (UV) radiation is relatively stronger at low altitudes, increasing the risk of sunburn. Therefore, when living in or traveling to low-altitude areas, it is important to take proper sun protection measures.

Maintaining a healthy lifestyle—such as eating a balanced diet, exercising moderately, and ensuring adequate sleep—can help enhance the body’s adaptability and resistance.