Two brains are better than one
We have always known that fine wine improves with age.
Now there is hard evidence to show that we do as well. The older we get, the better our thinking becomes.
This is due to ‘bilateralisation’. This means we increasingly use the two sides of our brain to think.
PET scans have shown that compared to younger brains, the middle aged brain not only uses more of itself to solve a problem, but also does better at solving the problem.
The middle aged brain accesses the powerful Frontal Cortex more that the younger brain does. As we go through life, our brains become more and more connected, making it easier for us to access it all. The younger brain appears to rely more on one side of the brain or the other. The middle aged brain uses the lot.
There is a potential downside to this ‘better thinking’. The middle aged brain is not so good at multi-tasking as the younger brain. There is also a lot of evidence to say the younger brain is not much good at it also. Picture the teenager trying to send a text message whilst driving!’
Roberto Cabeza, from Duke University, in his 2002 study “Aging Gracefully’, came up with the term ‘HAROLD’, or Hemisphere Asymmetry Reduction in Older Adults. HAROLD shows that the older we get the more able we are to recruit as much brain power as we need.
The brain seems to spend a lot of its time building a better brain which you can access during middle age.
This could also explain why, for many people, middle age is the most creative time of their lives. As we age, the brain becomes more intertwined, letting us see bigger patterns and have bigger thoughts. Our thinking might get slower but it gets richer and more creative.
As our brains become more densely wired, they become less rigidly bifurcated. We end up being able to access the natural powers of both hemispheres resulting in the neural integration of our thoughts and feelings. We move towards being more Whole Brained.
As one neuroscientist said, “Wisdom is learning how to use the brain in different ways”.
Reference: Secrets of the Grown-Up Brain by Barbara Strauch
Michael's Whole Brain® Blog