Does age affect altitude sickness?

Altitude sickness develops when the body has not adjusted adequately to lower oxygen availability at elevation. Acute mountain sickness commonly presents with headache plus symptoms such as nausea, dizziness, fatigue or disturbed sleep after ascent. A fit person can still become unwell, and physical fitness does not substitute for acclimatisation. Children may describe symptoms less clearly, while older travellers may have heart, lung, mobility or medication considerations that affect trip planning even when age itself is not the deciding factor.

Build a gradual ascent into the itinerary, especially when the sleeping altitude rises. Avoid pushing higher when symptoms appear, rest at the same elevation, and descend if symptoms worsen or fail to settle. Keep exertion gentle during early acclimatisation and avoid alcohol or sedatives that may impair breathing or mask deterioration. Before travel, discuss previous altitude illness, pregnancy, chronic medical conditions and regular medicines with a clinician. Preventive medicine may be appropriate for some itineraries, but it must not be used to override warning symptoms.

Confusion, unusual drowsiness, inability to walk steadily, breathlessness at rest, chest tightness, a persistent cough or blue-grey lips are emergency warning signs. Begin descent with assistance and seek urgent medical care; oxygen may be needed where available. Do not leave an affected person alone, and do not wait for daylight or for symptoms to become severe if safe descent is possible. Mild headache or nausea that intensifies despite rest also means the traveller should not continue upward.

Bring the route, sleeping elevations and ascent schedule to the consultation. Ask whether your health conditions or medicines change the plan, whether preventive treatment is suitable, and how to recognise serious brain or lung involvement. Parents should ask how a child may show reduced activity, poor feeding or irritability when they cannot describe a headache.