Can lifestyle changes reduce the risk of a brain aneurysm?

Describes the role of lifestyle in preventing aneurysms and bleeds.

Which risks can lifestyle influence?

Several acquired risk factors are linked with aneurysm formation and rupture, including high blood pressure, smoking, heavy alcohol use, and stimulant drugs such as cocaine and amphetamines.

Do lifestyle changes make a difference to aneurysm bleeding rates?

Yes. In developed countries, SAH incidence has fallen over time, in part due to lower smoking rates and better control of vascular risk factors.

What changes help most?

• Stop smoking and avoid exposure to tobacco.
• Keep blood pressure under control through diet, exercise and medicines if prescribed.
• Limit alcohol to low-risk levels and avoid binge drinking.
• Never use stimulant drugs such as cocaine or amphetamines.
• Maintain overall cardiovascular health, which supports brain vessel health.

Are there medicines that reduce risk?

Some evidence suggests aspirin may reduce aneurysm wall inflammation and the risk of growth or rupture, but this is not a blanket recommendation. Only take it if your specialist advises it after weighing your personal risks and benefits.

What about risks I cannot change?

Family history and certain genetic conditions such as autosomal dominant polycystic kidney disease or connective tissue disorders increase risk. Your clinician may discuss targeted screening in these situations.

Key takeaways

• Controlling blood pressure, stopping smoking, moderating alcohol and avoiding stimulant drugs reduce risk.
• Falling SAH rates are linked with better risk-factor control.
• Aspirin may help in selected cases, but only under specialist advice.
• Genetics and family history matter, and may guide screening, but lifestyle still counts.