As we get older, it is often the case that we have less contact with people around us due to lack of mobility, loss of friends and family, or from living alone or in care homes. Recent studies show that social isolation was associated with about 50% increased risk of dementia [CDC]. Feeling lonely or being socially isolated can contribute to additional lifestyle traits, including reduced exercise, and increased alcohol consumption and smoking, all of which can further contribute to the progression of Alzheimer’s disease. 

The changes to the brain that are caused by Alzheimer’s disease can start years or even decades before the first symptoms show. So even if your parents aren’t showing signs of Alzheimer’s now, encouraging them to be tested early would enable you to support them in making the right changes to reduce their risks of disease progression.