For the legal cannabis trade, some new wrinkles: Older users

Moreover, a fog of mystery clouds this topic. More research is needed into cannabinoids, marijuana’s active chemical compounds, said Dr. Mark Wallace, chair of the Division of Pain Medicine at UC San Diego Health. Effects vary depending on strains, delivery methods — whether it’s smoked, consumed in brownies and gummies, or administered in tinctures — and the user’s age.

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