In interesting study by the University of California showed that people who eat a lot of fruit a vegetables, as well as exercise regularly, have less harmful debris that builds up in their brain that causes Alzheimer's.
Alzheimer's affects nearly a million people in the UK, and, along with other forms of dementia, it costs the UK an estimated £26billion a year.
The study worked with 44 adults aged between 40 and 85. Throughout the study they underwent brain scans for plaques and tangles, the deadly deposits which trigger dementia. Those who were a healthy weight, exercised regularly and had a healthy diet, involving moderates amount of alcohol, had smaller deposits.
One doctor said: "The fact we could detect the influence of lifestyle at a molecular level before the beginning of serious memory problems surprised us. It reinforces the importance of living a healthy life, even before the development of clinically significant dementia."