It seems like a bit of a stretch. The article does say that antidepressants were responsible so even with the implantation of incubated stem cells (brain surgery for depression!?) it really depends on whether or not the body decides to nurture their growth to maintain regeneration. There are cheaper ways to deal with anxiety. I've found supplementation with 5-HTP & B-12 to help significantly, so does having a cup of chamomille whenever. I've been struggling with trying to meditate for years, it's always been a failure because my mind is always full of shit but even slow progress has proven helpful in dealing with anxiety, especially the breathing component when I'm trying to relax amidst a lot of chaos or noise. IMHO you can motivate your body and mind to change radically if you desire the change stongly enough.