Stroke Risk Across the Lifespan: Age Distribution and Prevention

Stroke incidence rises steeply with age, but it is not exclusive to older adults.

• ≥65 years: Highest incidence; ~75% of strokes.
• 45–64 years: Increasing rates; premature vascular aging from obesity, hypertension.
• 18–44 years: ~10–15% of strokes; causes include dissection, cardioembolism, hypercoagulable states, drug use.
• Children/perinatal: Rare but distinct etiologies (cardiac, hematologic, metabolic).

Stroke is a leading cause of death/disability under 55. Modifiable risks (hypertension, smoking, diabetes, AFib, inactivity) apply at all ages. FAST recognition (Face, Arm, Speech, Time) and immediate EMS activation save brain tissue regardless of age.