Key points from article :
Almost half of all dementia cases could potentially be prevented or delayed.
This is by adopting 12 health measures accoriding to the review.
It identified the biggest known risk factors for dementia.
Includes smoking, excess alcohol, high blood pressure, obesity, diabetes, head injury, depression.
Also hearing loss, exposure to air pollution, lack of exercise, and education and social contact.
Minimising these could potentially delay up to 40% of dementia cases globally.
UK, US and France dementia rates in older people have fallen in recent decades.
Possibly due to improvements in education, nutrition and health care.
This suggests that preventative health measures can have an impact on dementia.
However, there is a limit to how much you can prevent dementia with lifestyle interventions.
Because the brain inevitably starts to shut down in very old age.
Researchers from University of Melbourne, Australia, published in The Lancet.
