Regular cannabis users demonstrated higher emotional comprehension, particularly in understanding others’ emotions, compared to non-users.

Here's the original research paper

“Empathy-related differences in the anterior cingulate functional connectivity of regular cannabis users when compared to controls” by Víctor E. Olalde-Mathieu et al. Journal of Neuroscience Research

https://onlinelibrary.wiley.com/doi/10.1002/jnr.25252