Evidence-based research about cannabis

STEM is an independent, methodologically rigorous, and updated cannabis evidence resource for the health care sector that synthesizes what is known from research and what is left to learn about the health effects of cannabis.

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THC lingers in breastmilk with no clear peak point

When breastfeeding mothers in a recent study, published in the journal Breastfeeding Medicine, used cannabis, its psychoactive component THC showed up in the milk they produced. The Washington State University-led research also found that, unlike alcohol, when THC was...

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