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What 5 Lifestyle Changes Could Cut Your Dementia Risk by 60%?

What 5 Lifestyle Changes Could Cut Your Dementia Risk by 60%?

A new study has identified key lifestyle changes that can reduce the risk of developing serious illnesses in later life, including cutting dementia risk.

The 35 year study of 2,235 men aged 45-59 at the start of the study, which was conducted by scientists at Cardiff University, Wales, UK, identified the following five key lifestyle factors that can cut dementia risk by as much as two thirds:

  • taking regular exercise, which is defined as 30 minutes, 5 days a week and enough to break a sweat
  • not smoking
  • maintaining a healthy body weight (using normal BMI as an indicator)
  • a healthy diet, which is defined as eating five or more servings of fruit and vegetables a day and getting less than 30% of total calories from fat
  • a low alcohol intake, which is defined as three units of alcohol per day or less

One factor stood out above the rest for its power to cut health risks, though: exercise.

The researchers found that people who consistently followed four out of five or all five of the behaviors cut their risk of dementia and cognitive decline significantly and by as much as 60%. What’s more, when compared to people who followed none of the above recommendations, they also cut their risk of a number of other diseases including diabetes, heart disease and stroke.

“The size of reduction in the instance of disease owing to these simple healthy steps has really amazed us and is of enormous importance in an aging population,” Principle Investigator Professor Peter Elwood from Cardiff University’s School of Medicine is quoted as saying. “What the research shows is that following a healthy lifestyle confers surprisingly large benefits to health — healthy behaviours have a far more beneficial effect than any medical treatment or preventative procedure.”

However, Professor Elwood has warned that despite the fact none of the above are particularly new recommendations, few people are choosing to follow all five of the healthy behaviors.

“Taking up and following a healthy lifestyle is however the responsibility of the individual him or herself. Sadly, the evidence from this study shows that very few people follow a fully healthy lifestyle. Furthermore, our findings reveal that while the number of people who smoke has gone down since the study started, the number of people leading a fully healthy lifestyle has not changed.”

There were a few surprises in the study. Chief among them was that the only factor that meaningfully impacted cancer rates wasn’t exercise or a healthy diet. It was not smoking. That might be a bit of a downer for people who don’t smoke and wanted to cut their cancer risk further. Other studies have shown that exercise and healthy eating can contribute to reducing certain cancer rates, so this finding does not necessarily mean that such efforts are meaningless.

What the study does highlight is the importance of quitting smoking and the dramatic effect that it may have.

This research does have a number of limitations as it didn’t account for socioeconomic status or marital status. These are limitations the study’s authors recognize and accept, but they say their findings still have merit and contribute to the consensus of medical advice that supports the healthy lifestyle factors they have identified.

The study comes as UK Prime Minister David Cameron and leaders of the G8 states pledge a war on dementia. Worldwide, dementia affects around 44 million people, and that figure is set to double in the next 40 years. That’s unless we can find medication to permanently stop dementia in its tracks. Currently, only a handful of drugs exist on the market and all of them only slow the onset of the disease.

David Cameron wants a dementia cure by 2025. That’s a lofty goal, but the Prime Minister appears ready to put his money where his mouth is, having announced the UK will double its funding for dementia research to 132 million by 2025.

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Photo credit: Thinkstock.

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80 comments

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1:44AM PST on Dec 22, 2013

Playing scrabble and doing crosswords also staves off dementia.

6:10PM PST on Dec 20, 2013

This advice will help in prevention of many other illnesses too eg cancer. Now .... the real job is getting people to actually do it! Good luck!

12:04AM PST on Dec 20, 2013

35 years of study, that is a long time! Very interesting. Thanks

10:18AM PST on Dec 19, 2013

Interesting, as my grandmother had dementia and was very active all her life. My other grandmother was sedentary and had no dementia, both lived to about ninety. But exercise sounds like a good idea anyway, and obviously one example from my personal life isn't a good sample size. Thanks.

10:14AM PST on Dec 19, 2013

What ................................

2:27AM PST on Dec 19, 2013

This study can ONLY be genrealised for a male population, the test sample tested men and it isn't scientifically accurate to say that these results would apply to women unless women where also tested. It might be general good advice but it still can't be scientifically genrealised for women. (I write scientific reports for psychology but the principal behind genralising results and sample representation rules apply to all of the sciences.)

1:55AM PST on Dec 19, 2013

Thanks for the informative article.

1:22AM PST on Dec 19, 2013

Thank you :)

8:53AM PST on Dec 18, 2013

Good advice, thank you

7:19AM PST on Dec 18, 2013

The advice is good enough for anyone to follow in general.

I do know a few people that had Dementia and I have to say they were the perfect piture of health so I don't know that I believe this helps Dementia. It can't hurt it!!!

It's basic healthy info anyways. Do what you can to keep yourself as healthy as possible. Sounds like common sense to me.
TY!!

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