Is it possible for new brain cells to grow?

Image source: mayo.edu

There's a common belief that people are born with a fixed number of neurons and that new ones are no longer possible. This was based on the idea that motor (movement) and cognitive (thought) functions decline as people get old. However, Dr. Curtis Cripe notes several studies suggesting otherwise. This will be the discussion in today's article.

For the past 20 years or so, research on the hippocampus area of the brain -- the region associated with learning, memories, and emotions -- has found a continuous rebuilding of new cells regardless of age or time. Further studies using carbon-14 dating also found that cells in the same region, while diminishing, are quickly replaced by new ones. This process, noted by scientists, can keep the central functions of the hippocampus.

Research like these are significant, in such a way, that they suggest that there are stimuli and inhibitors of adult neurogenesis, says Dr. Curtis Cripe. He further noted possible hints and possible treatment of degenerative diseases such as Alzheimer's and Parkinson's and the recovery from traumatic brain injury.

Image source: mayo.edu

Surprisingly, among the ways that can potentially amp up adult neurogenesis is exercise. Scientists at the University of Chicago found that aerobic exercise led to cell production in the hippocampus, and increased genetic information is encoded. Scientists also found brain exercises are equally important. Still, it cannot be discounted that age, especially at 80, can reverse such gains. But people should not be dissuaded to seek the benefits of physical and brain exercise, even as more research is necessary.

Dr. Curtis Cripe has a diverse multidisciplinary background which includes neuroengineering technology, aerospace engineering, software development, addiction recovery, among others. He is the head of research and development at the NTL Group. More on Dr. Cripe and his work here.