Follow the Unspoken Rules. Also space or click. There are 2 types (DON'T DELETE THIS WHEN REMIXING!): ___ Blood: Relates to your Ethnicity, gaining resistance passed down by your ancestors. Long Term ___: Relates to wither where you live or anything else, gives you resistance as you are used to such behavior. Of course, there could be more types, but these are the two main ones.