Before probiotics became the much-discussed topic of the microbial world, cultures around the world were praising fermented foods. Dating back to the Neolithic tradition as a form of preservation, fermentation has become a big topic in today’s health-conscious era focused on living a holistic lifestyle.

Research has uncovered some pretty incredible things, like the brain-gut connection, which essentially says your gut has a brain, too. This makes it pertinent that our gut flora is healthy, and so scientists continue to observe what makes it thrive, and what makes it suffer. Dr. Emeran Mayer, a UCLA professor of medicine and a specialist in gastroenterology, and his team of researchers have discovered even more on the subject: drinking a milk fermented with probiotics can change the brain activity of women.