Avoid danger like our ancestors did (think lions, trans fats, sugars, fluoride,
excessive wifi, emfs, vaccines, mercury, toxic people, pollution, non-native
water, plastics, non-native clothing (polyester, acrylic, acetate, nylon, etc), non-native bedding, non-native eating and drinking containers, non-native toiletries, non-native smells (perfumes, air fresheners), flame retardants, etc)... This is more categorical in nature because to list everything under this category would be virtually impossible.
You can also ease your nerves by
avoiding cigarettes and
excessive caffeine before the interview, getting plenty of sleep in advance, and eating a well - balanced meal or snack with
water.