Time magazine says it does. 

Australian News site says not so much. 

The Chroncile of Higher Ed does a good jo taking a look at both points of views. 

Bottom line: Even a little mindfulness medition can produce some results. 

“For some of the participants, the amount of meditation they did was very small,” Goyal said. “That we saw anything was kind of neat. But we only saw it for mindfulness meditation, and we really saw nothing for TM, so there’s still a lot of work that needs to be done. Just because we didn’t find any evidence for many of the outcomes, one shouldn’t conclude that these either don’t work or that we’ve shown that they don’t work.”