Modern cultivation has spawned a growing number of hybrid strains, splicing genetics from across the globe into new strains greater than the sum of their parts. These hybridized strains offer the benefits of both subspecies — the energizing, head-high of Sativas, counter-balanced with the full-body high characteristic of Indicas.
While some hybrids may be influenced equally by their Sativa and Indica lineage, many lean in one direction or another. This is referred to as being Indica or Sativa dominant. Control over these factors allows for expert breeders to tailor their hybrid strains precisely to the needs of an individual.