While chronological age is the strongest known risk factor for cognitive decline, losing cognitive function is not an inevitable part of aging. Nonetheless, Alzheimer’s and other forms of cognitive decline continue to rise. Researchers at Florida Atlantic University say up to forty-five percent of dementia risk may be linked to modifiable and environmental factors, such as physical inactivity, poor diet, obesity and alcohol use and associated chronic diseases, including diabetes. A commentary in the American Journal of Medicine points to recent research showing significant cognitive improvement in participants who took part in structured lifestyle interventions that included exercise and diet, along with cognitive stimulation and social engagement.