Don't. Fly.
When I think of all the trips around the world I made in my working life while stuffed in an aluminum tube with people from God knows where, who have done and been who knows where, carrying who knows what manner of disease and in who knows what state of mind... I am amazed I’ve lived this long.
If someone gave me an around the world all expenses paid trip I’d give it back. If I never get on another airplane it will be too soon. Gone are the days when I could go to the back and sleep laying across a full row of seats on a 747 or exercise by going up and down the stairs on flights to Australia and having looong visits with the cabin crew. Back in the day we would sit in the lounge seating on the old 737s drinking free beer with the SWA stewardesses in their hot pants. Those were good times and we were young.