Authors found “little support for a causal effect of cannabis use on cognition. This conclusion is consistent with those from previous twin studies, which suggest that cannabis use does not cause a decline in cognitive ability among a normative cannabis using sample.”
Authors reported “an independent negative association between frequent cannabis use and frequent illicit opioid use.” Specifically, subjects who consumed cannabis daily “had about 50 percent lower odds of using illicit opioids every day [as] compared to cannabis non-users.”
"This is a truly historic moment in our nation's political history. For the first time, a Congressional committee has approved far-reaching legislation to not just put an end to federal marijuana prohibition, but to address the countless harms our prohibitionist policies have wrought, notably on communities of color and other already marginalized groups."