At high altitudes, oxygen is less due to low air pressure. Making pauses allows the body to gradually adjust and produce more red blood cells. Without acclimatisation, one may feel sick. That’s why climbers and soldiers take rest stops to stay healthy.
Class 7 Social Science Exploring Society: India and Beyond
Class 7 Social Science Chapter 2 Understanding the Weather question answer
When people travel to high altitudes, air pressure drops and oxygen levels decrease. The body needs time to adapt by producing more red blood cells to carry oxygen. Taking breaks along the way allows this process, known as acclimatisation, to occur. Without this adjustment, individuals may experience altitude sickness—symptoms include dizziness, headaches and nausea. Hence, trekkers, tourists and soldiers climbing high passes like Khardung La pause often to protect their health and avoid severe discomfort.
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