This is true, Alfonso. I meant to say percentages rather than genetics, actually. AK47 is a 65/35 sativa dominant strain high in CBN and CBD and lower in THC; Purple Kush is a pure Indica. Personally, I stick with pure indica strains for the pain relief and sleep. If I have a pure indica AND a medicated brownie/cookie before bed, I sleep through the night. I will still wake up if I don't eat too. I find the edibles last longer for me and don't make me feel "stoned". I can still function completely.