Fitness: Could your brains ability to harness energy explain age related mental decline?

Everyone seems to assume that your mind must degrade with age. I’ve never seen convincing evidence for that. I simply see that increasing age requires increasing maintenance since our parts and code get old. In otherwords,

You are only as old as the lifestyle you live. 

So it is that I am good at finding evidence that shows this to be true. There is increasing evidence that
Age-related cognitive decline is linked to the energy available to synapses in the prefrontal cortex. The study’s senior author, John Morrison, PhD explains this more clearly

“We are increasingly convinced that maintenance of synaptic health as we age, rather than rescuing cognition later, is critically important in preventing age-related cognitive decline and Alzheimer’s disease,”

So the experts are finding that our brain structures don’t die off as much as we thought. The real problem is that the brain needs energy to keep its traffic flowing because neurons need energy to transfer signals. As people age our current lifestyles lead them to become inefficient in accessing their available energy stores. So less energy is made available to support brain traffic.

The authors sum up the finding neatly

Working memory requires the energy-demanding activation of nerve cells in the prefrontal cortex through the complex arrangement of the synapses that interconnect nerve cells.

In short. Synapses need lots of energy to work properly. Without that energy they start to fail.

If you have been following this blog you may start to understand why I believe that the health of our bodies reflects an energy economy. Financial economies suffer when money flows slowly. Cashflow is everything and individual businesses fail simply because cash flow isn’t handled properly.

In the same vain life is all about energy flow and individual humans suffer problems when they manage their energy poorly.

The best way to fix problems like this is to be more active. With the mind you need both physical and mental activity. The reason is simple. Your brain loses functionality because it can’t tap into the energy resources around it. This happens primarily because you don’t use your brain enough and so it hasn’t kept up its sharpness. It’s literally become unfit. So you have to train it by using it.

Over time the parts that were slack are forced to get back up to speed. It’s obviously much more technical than that but that is what ultimately why the term use it or lose it was coined.

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