Chronic Mountain Sickness

Chronic Mountain Sickness (CMS), also known as Monge's disease, occurs when people live at high altitudes for extended periods. It results from low oxygen levels in the environment, causing the body to produce more red blood cells to compensate. While this can enhance oxygen transport, excessive red blood cell production can lead to symptoms like fatigue, headaches, and breathing difficulties. In severe cases, it can cause complications like heart issues. CMS primarily affects individuals living above 2,500 meters (about 8,200 feet) and is more common in certain populations, particularly in the Andes region.