Want to reduce your risk of dementia? Go easy on the drink, take a more scenic route to work and cut down on sugar. That’s the conclusion of a new study looking into the risk factors of brain decline. The scientists’ recommendations carry particular weight because they map on to changes in the brain that drive dementia. The findings could also help explain why certain groups may be more vulnerable to dementia. The scientists have previously identified a weak spot in the brain which is a specific area that develops later during adolescence, and also shows earlier degeneration in old age. In the…