Long flights can leave people dry, stiff and tired. The main issues are usually dry air, long sitting, changes in the sleep rhythm and mild pressure changes in the ears.
Before the flight#
Eat lightly rather than heavily and keep drinking steadily before departure. If you take regular medicines, keep them in your hand luggage. A simple plan is easier to follow than trying to manage everything once you are already seated.
During the flight#
Keep the eyes and nose as comfortable as possible. Water, lip balm and a saline spray can help with dryness. Move the ankles, stretch the legs and stand up when you can.
For many people, a window view or a look toward the horizon reduces motion discomfort. Reading for long periods can make it worse.
Ears, nausea and swelling#
Swallowing, chewing or sipping small amounts can help the ears equalise pressure during takeoff and landing. If you are prone to motion sickness, start your plan early rather than waiting for symptoms to build.
Leg swelling is usually mild, but sudden one-sided swelling or chest symptoms are not normal and need urgent review.
When to seek care#
Seek care if you develop shortness of breath, chest pain, fainting, neurological symptoms, or a clearly swollen and painful one-sided leg after a flight. Those symptoms need prompt assessment.
Further reading and sources#
Further reading: