After thirty years of smoking, I've found no real difference between sativa and indica strains. There are a half dozen different deltas of THC, and CBD has it's own. That's where the real variety in effect comes from. But it could be any strain that has this. The general consensus is sativa = active, indica = sleepy, but I've found it both ways. Ultimately the grower/gardener has a much bigger effect on the quality than the strain.