When flying, you may experience mild altitude sickness, which can make you feel as if you're slightly intoxicated. This is due a state of acute oxygen deficiency called hypoxidosis. Other symptoms include:
- Nausea
- Headache
- Clammy skin
- Difficulty in concentrating
- Aching lungs
What to Do
- Sit still and try to close your eyes
- Avoid alcohol
- Sip some water every few minutes and try to relax
Altitude Sickness On Arrival
If you're travelling to a country that is 3,500 m or more above sea level, you may develop symptoms of acute mountain sickness (AMS) after arrival. Some airports in the Himalayas and Andes are situtaed above this altitude, which can result in symptoms occurring soon after disembarking. If you have any cardiac or respiratory problems, you may experience symptoms at even lower levels.
What to Do
Drink plenty of water on the plane – dehydration will make this condition worse.
- Rest and slowly acclimatise on arrival.
- Avoid strenuous activity.
- Do not travel to a higher altitude until all symptoms have disappeared.
Anybody who has pre-existing hypoxic respiratory disease should seek medical advice prior to departure.