Study Suggests Lifting Weights Could Make You Smarter

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‘The more we can get people doing resistance training like weight lifting, the more likely we are to have a healthier ageing population’

Regularly lifting weights could make you more intelligent, a new study of people with the early signs of dementia suggests.

A group of people aged 55 to 86 with ‘mild cognitive impairment’ – a precursor of Alzheimer’s disease – were asked to carry out a mix of weight lifting and brain training.

While it is unclear whether this would apply more widely, the researchers said they had found a causal link between an increase in strength and better functioning of the participants’ brains.

And, on that basis, they recommended people should lift more weights so that the world would have a “healthier ageing population”. Some 135 million people are currently expected to have dementia by 2050.

The study, published in the Journal of the American Geriatrics Society, is the latest in a growing body of research which links the health of the body to the health of the brain.

The same team behind it published a paper in 2014 which revealed the participants’ global cognition had improved significantly after the weight training, whereas cognitive training did not do this.

Researcher Dr Yorgi Mavros, of Sydney University, said: “What we found in this follow-up study is that the improvement in cognition function was related to their muscle strength gains.

“The stronger people became, the greater the benefit for their brain.”

The weight training program involved lifting weights that were 80 per cent as heavy as the maximum the participants were able to lift twice a week for six months. This is similar to training regimes used by athletes.

As they got stronger, the amount of weight they lifted was increased to keep to the 80 per cent level.

MRI scans revealed that specific areas of the brain increased in size among those who took part.

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SOURCE: The Independent – Ian Johnston

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