[Astromancer]

I'm rereading a Heinlein novel, "Orphans of the Sky." What kind of perks would aid you in not becoming nauseous or dizzy in microgravity. I know most folks adapt quickly ( although "groundhog" in Heinlein's terms would be a nasty quirk) but how would instant or near instant adaptation be described as a Perk or Advantage. Myself I see it as a perk except in unusual campaigns.