FOUR in ten cases of dementia could be prevented or delayed by adopting a healthier lifestyle, a study reveals.
Experts have identified a dozen modifiable risks from childhood to old age that account for 40 per cent of cases.
It includes too much boozing, too little exercise, smoking, obesity and high blood pressure.
Loneliness, pollution, head injury, hearing loss, depression, diabetes and poor education also increase the odds.
The report was compiled by 28 researchers from around the world, who want individuals and governments to take action.
Lead author Prof Gill Livingston, from University College London, said: “We can reduce risks by creating active and healthy environments.”
Other suggestions include the wider use of hearing aids, stop-smoking support and safer working practices.
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“While we don’t have all the answers yet, we can take action now to tackle the risk factors within our control, including excessive drinking, obesity and high blood pressure.
“Meanwhile, we need public health policies to address other factors, such as air pollution and inequalities in childhood education.”
Around 850,000 people are living with dementia in the UK, with the figure predicted to rise to 1.6million by 2040.
The findings are published in The Lancet and presented at the Alzheimer’s Association International Conference.
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