Your ageing brain, change isn’t all bad!
Getting old is not an illness, it’s natural, it’s what happens to us. Nobody flips a switch when you reach 65 to change the nature of who you are, and yet is seems increasingly that ageing is being treated as an illness or disability. As someone in my 50’s it is apparent that a number of my capacities are in decline, for example my eyesight. I’m not an ageing denialist, we will grow older and it will have an effect on our minds and bodies. Where I have a problem is when I encounter the fixed attitude that reaching retirement age is a point at which your value to society is dramatically reduced. This is clearly a nonsense and is part of the pervasive attitude towards the elderly in many contemporary industrialized societies.
To demonstrate the lack of science, compassion and common sense on which the negative stereotyping of older people is based let me introduce you to a well established scientific concept. Unless you work in an area linked to brain ageing the chances are that you have never heard of ‘crystallised intelligence’. We all know that older people may start to think a bit more slowly and reaction times can drops off. But this is normally offset throughout our 60’s and 70’s by a steady increase in experience based reasoning or wisdom! The total of our life experience leaves an imprint on our decision making and planning abilities because we have seen many things and generally learnt a lot. This wisdom is often referred to as crystallised intelligence, the ability to draw on long standing and established knowledge. In the view of many neuroscientists it can compensate for decline in the more fluid cognitive functions that we tend to see eroded from the age of 40 onward.
It is this ‘wisdom’ or life experience that many cultures revered and respected in parents and grandparents. The idea that people in old age may have stores of knowledge and experience able to benefit their communities, rarely features in discussions about the aging process in contemporary society. Yet we know that many politicians, thinkers and performers continue to play important roles in our lives into their 80s and 90s. Yes we will age but how we age is dependent on a number of factors such as what we do with our brains, our diet and the extent to which we take responsibility for our own brain health.