What's the difference between Indica and Sativa?

There are two recognized types of herbal cannabis, "sativa" and "indica". So-called "sativa" strains are reputed to induce a noticeably more "cerebral" high, while "indica" strains induce more of a body high. These two drug types are often hybridized or crossed with early-maturing (but low in THC) "ruderalis" strains to increase the range in desirable characteristics.

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