Cannabis consumers have historically differentiated strains by three classifications: indica, sativa, and hybrid.
Indica strains are believed to be physically sedating, perfect for relaxing with a movie or as a nightcap before bed.
Sativa strains are said to provide invigorating, uplifting cerebral effects that pair well with physical activity, social gatherings, and creative projects.
Hybrid strains are thought to fall somewhere in between, offering a balance of indica and sativa effects.
New research explores the strengths—and limitations—behind the labels.