A new study suggests that avoiding three common health risks in middle age may push back dementia risk by about 13 years. The factors highlighted were type 2 diabetes, smoking and high blood pressure, all of which are widely seen as major threats to long-term health.

The findings point to the importance of managing health earlier rather than waiting until old age. In this research, people who were free of those three risks appeared less likely to face dementia sooner, underscoring how habits and chronic conditions in midlife can shape brain health later on.

Scientists have long linked cardiovascular and metabolic health to the condition of the brain. High blood pressure can damage blood vessels, smoking affects circulation and overall health, and type 2 diabetes has been associated with changes that may raise the likelihood of cognitive decline over time.

While the study does not suggest dementia can always be prevented, it adds to growing evidence that reducing modifiable risks may help delay when problems develop. For many adults, the message is that controlling blood pressure, avoiding smoking and lowering the chances of type 2 diabetes could play an important role in healthier aging.