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Your brain is pretty fabulous. Around 100 billion nerve cells work together to keep you nimble and quick in your thinking.
But just like the rest of the body, your brain may not be quite as vigorous when you get a little older. Maybe you find yourself having to write things down, or you forget appointments, or can't quite follow the conversation or action on TV without straining.
Luckily, it's possible to exercise your brain too.
The keys to our nervous system are the grey and white matter."
Hermundur Sigmundsson, Professor, Norwegian University of Science and Technology's (NTNU) Department of Psychology
Roughly speaking, the grey matter consists of the nerve cells – or neurons – and dendrites, while the white matter provides the contacts between the cells (myelinated axons) and contributes to the transmission speed and distribution of the signals.
A recent article in the journal Brain Sciences brings together a lot of what we know from previous research in the field of brain health. The researchers went to great lengths to be thorough in their theoretical perspective paper and offer 101 references to articles on how to keep our grey and white matter in shape.
"Three factors stand out if you want to keep your brain at its best," says Sigmundsson.
This is probably the biggest challenge for many of us. Your body gets lazy if you sit on your bum too much. Unfortunately, the same is true for the brain too.
"An active lifestyle helps to develop the central nervous system and to counteract the ageing of the brain," according to Sigmundsson and his colleagues.
So it's important not to get stuck in your chair. This requires effort, and there's no way around it. If you have a sedentary job, go to school or when you're done work, you need to activate yourself, including physically.
Some of us are happiest alone or with just a few people, and we know that "hell is other people" – if we translate writer-philosopher Jean Paul Sartre's phrase a little loosely. (Although his version was admittedly somewhat more involved.) But in this regard, you have to steel yourself.
"Relationships with other people, and interacting with them, contribute to a number of complex biological factors that can prevent the brain from slowing down," says Sigmundsson.
Being with other people, such as through conversation or physical contact, supports good brain function.
This last point may have something to do with your personality, but if you've read this far, chances are good that you already have the necessary foundation and are probably willing to learn.
"Passion, or having a strong interest in something, can be the decisive, driving factor that leads us to learn new things. Over time, this impacts the development and maintenance of our neural networks," Sigmundsson says.
Stay curious. Don't give up and just let everything run its course the same way all the time. You're never too old to do something you've never done before. Maybe now is the time to learn to play a new musical instrument.
Sigmundsson collaborated with master's student Benjamin H. Dybendal and associate professor Simone Grassini at the University of Stavanger on the comprehensive paper.
Their research thus presents a similar picture for the brain as for the body. You have to exercise your brain so that it doesn't decay. "Use it or lose it," as the saying goes.
"Brain development is closely linked to lifestyle. Physical exercise, relationships and passion help to develop and maintain the basic structures of our brain as we get older," says Sigmundsson.
These three factors thus offer some of the keys to maintaining a good quality of life – and hopefully – ageing well.
Norwegian University of Science and Technology
Sigmundsson, H., et al. (2022) Motion, Relation, and Passion in Brain Physiological and Cognitive Aging. Brain Sciences. doi.org/10.3390/brainsci12091122.
Posted in: Medical Science News | Healthcare News
Tags: Aging, Brain, Central Nervous System, Exercise, Grey Matter, Nerve, Nervous System, Neurons, Psychology, Research
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