As a kid I was always prone to car sickness. As a pilot I can shoot approaches with the hood on in turbulence for 2-3 hours a day and it doesn't bother me much

As a kid I was always prone to car sickness. As a pilot I can shoot approaches with the hood on in turbulence for 2-3 hours a day and it doesn't bother me much. 4-5 hours in a single day when I was doing my instrument training was pushing it, but a lot of that was probably related to heat, dehydration, etc as well I think. As a kid I was also prone to seasickness which subsided as I grew older, but since moving away from New Orleans into the center of the US I have completely lost any tolerance for boat-related motion sickness, I've found. I think it's like so many other things: high tolerance comes from regular use.