Here's the latest research on pot and drinking, pot and opiate dependency, pot and IQ, pot and migraines, and pot and obesity.

Scientific discoveries are published almost daily rebuking  the federal government’s contention that cannabis is a highly dangerous substance lacking therapeutic efficacy. But most of these findings are relegated to obscure, peer-reviewed journals and, therefore, often go unnoticed by the major media and the general public. Here are five new cannabis-centric studies that warrant mainstream attention.

Consumers Seldom Combine Marijuana With Alcohol

Marijuana consumers don’t typically mix pot and booze together, regardless of whether they are consuming cannabis for medicinal or social purposes, according to data published online in December in the journal Addiction.

Investigators at the RAND Drug Policy Research Center and the University of California, Irvine surveyed the habits of marijuana consumers residing Colorado, New Mexico, Oregon, and Washington. Authors reported, "Individuals who use cannabis do not commonly use it...