With recreational cannabis now legal in Arizona, there are a lot more people who can celebrate 710, the second-biggest holiday marijuana holiday. (In case you’re wondering why the cannabis community landed on July 10: If you turn 710 upside-down, it spells “oil,” a reference to extracts produced when you process marijuana plants.) Sure, like 420, the other cannabis holiday, it seems a little silly and made up, but aren’t all holidays made up? July 10 is now a big deal in the cannabis community and most of our local dispensaries are featuring all kinds of deals, so celebrate as you see fit.

This week, our Tucson Weedly columnist David Abbott bring us two stories. One explains exactly what this oil stuff is—marijuana concentrate, produced by squeezing the leaves and bud and using a solvent to extract an oil loaded with THC. The other looks at how Dr. Sue Sisley, who was stymied in her efforts to study whether cannabis was helpful for the treatment of PTSD in veterans, has continued her research in Maricopa County, but not without facing a lot of hurdles.