Looking at 8,823 European Americans and 2,738 Black Americans over the course of 30 years, the study rated each participant on a scale of 0 to 14 in the above categories to determine the extent of their healthy habits in combination with their genetic risk of developing dementia. Based on their calculated risk scores, the participants were then broken into groups with those at a corresponding risk level.
At the end of the study, researchers determined that those with higher scores in LS7 were less likely to develop dementia, overall lowering the estimated risk. In fact, each time a participant gained one point on the LS7 scale, their risk for dementia dropped around 9%.
