People with the worst genetic risk of dementia can reduce their chances of developing the disease by a third through exercise and healthy eating, new research finds.
The first study to analyse the combined effect of genetic and lifestyle factors established that the impact of living healthily was enough to substantially lessen the danger from bad genes.
Regular moderate exercise, quitting smoking, drinking sensibly, plus eating lots of fish and vegetables, was linked to roughly the same reduction in the chance of dementia, regardless of genetic risk, the research found.
OK, so there’s dementia caused by bad diet, that caused by genes. That caused by bad diet has risk of reduced by not having a bad diet.
This means the benefit of adopting a healthy lifestyle is likely to be highest for those with the worst genes.