Many people fear the physical and cognitive declines associated with aging for good reason. However, a new study suggests that a combination of daily lifestyle habits can improve brain function for those who already show signs of Alzheimer’s disease—the most common type of dementia impairing memory, thinking speed, and overall well-being. Nearly seven million Americans live with Alzheimer’s, and while drug treatments for the condition are in the approval process, people are eager to find ways to take control of their brain health.

The study published Friday, conducted by the journal Alzheimer’s Research & Therapy , found that five months of eating a vegan, whole-foods diet, walking regularly, connecting with others, taking nutrient and mineral supplements, and adhering to a range of stress reduction practices, improved cognitive function for older adults with early signs of Alzheimer’s in comparison to adults who did not change their habits. “I’m cautiously optimistic and very encouraged by these findings, which may empower many people with new hope and new choices,” said Dr. Dean Ornish, who led the study and is the founder and president of the nonprofit Preventive Medicine Research Institute in a press release .

“We do not yet have a cure for Alzheimer’s, but as the scientific community continues to pursue all avenues to identify potential treatments, we are now able to offer an improved quality of life to many people suffering from this terrible disease.