Well, I'm not gonna ask about the super yachts :D

l0k18

I've heard of people getting accustomed to it eventually. I heard one number at 90 days, which made me think it has to do with the cells in the body adapting. 
i don't usually have to deal with this, though, luckily. superyachts don't case me this problem.

premitive1

What are you working on this week?

I used to get that real bad as a child. I think it was part of my glue protein intolerance, my diet was primarily wheat, brown rice and soy/chickpea, and of course eggs and milk.

Right now if I ate that I'd be useless for almost 24 hours, between 30min and 8 hours later, bronchoconstriction that feels what it must be like to have emphysema.

But spending so many hours on boats is not something that you just get used to overnight, many people never adapt and end up head over the side sooner or later, every time.