“The science is pointing to yoga being beneficial for healthy brain function, but we need more rigorous and well-controlled intervention studies to confirm these initial findings,” said Jessica Damoiseaux, Assistant Professor,  Gerontology and Psychology, Wayne State University, Detroit. The review, published Dec. 26 in the journal Brain Plasticity, found the brain benefits of yoga are similar to those from aerobic exercise.

“Yoga is not aerobic in nature, so there must be other mechanisms leading to these brain changes. So far, we don’t have the evidence to identify what those mechanisms are. Dr. Neha Gothe, Director,  Exercise Psychology Lab, University of Illinois, Urbana Champaign. Five of the 11 studies used brain imaging before and after newbies followed a regimen of at least one yoga session per week for 10 to 24 weeks. All used a regimen called hatha yoga. Other studies compared brain scans of yoga practitioners and people who had never tried yoga.

Collectively, the studies pointed to a link between yoga and increased size in the brain’s hippocampus. Involved in memory and learning, the hippocampus shrinks with age and is the first part of the brain affected by Alzheimer’s and dementia.

Yoga also appeared to expand the amygdala, a brain area involved in emotions; the prefrontal cortex, which is involved in planning and making choices; and the cingulate cortex, which plays an important part in regulating emotions, learning and memory.

Yoga practitioners were also found to fare better on mental performance tests, the study team observed. Dr. Thomas Vidic, a neurologist at Elkhart General Hospital in Elkhart, Ind., Also member of the American Academy of Neurology who was not involved in the study, said he was not surprised by the findings. There have been numerous studies that show that mental and physical activity is useful [and] probably necessary to maintaining brain function.  For now, however, we cannot separate out what it is about yoga that is causing these effects, [but] it would be an easy guess that yoga combines both mind and body, and is thus able to activate numerous pathways.

So should those who’ve never been drawn to yoga before but might like the potential brain benefits give it a go?  Yoga is not for sissies. It is a serious discipline and within this concept is the significant physical and cognitive stimulation.

And, remember, you won’t become competent overnight. But, you can become an enthusiast on day one. I believe that everyone needs to find an activity that is physically and mentally stimulating. And for many people yoga is a great activity.

Source: Thomas Vidic, M.D., neurologist, Elkhart General Hospital, Elkhart, Ind., and Memorial Hospital, South Bend, Ill., and member, American Academy of Neurology; University of Illinois news release; Dec. 26, 2019, Brain Plasticity