You are saying that it is the level of THC that makes the affects specifically for a heart condition. Yet, its NOT the level of THC as much as it is the Type (Indica or Sativa). India is the Type of strain that gives you the energy boost (my favorite). Yet the Sativa type is the one that mellows you out, helps you sleeps. I am no expert but the say that it is the THC levels that cause the issues is incorrect and you should base it more so on the type of strain.
$RMHB to the moon and back!