Migraine Aura May Signal Higher Stroke Risk in Midlife
A large cohort study suggests migraine with aura, especially in middle-aged and older adults, may help identify people who need closer stroke risk counseling.
Migraine with aura was linked to a higher risk of ischemic stroke over about 6 years in adults aged 45 and older. Migraine without aura did not show the same signal. The most unexpected finding was in men under age 72, where migraine with or without aura was associated with a much higher stroke risk. This does not prove migraine causes stroke, but it suggests clinicians may need to ask more carefully about aura when assessing vascular risk.
Study Details
Migraine is often treated as a painful neurological condition, but it may also carry vascular clues. Prior research has linked migraine with aura to ischemic stroke, especially in younger women. This newer study is important because it focused on middle-aged and older adults, a group where stroke risk is already shaped by blood pressure, diabetes, cholesterol, smoking, atrial fibrillation, and other traditional factors.
The study was published in Neurology Open Access and used data from the REGARDS cohort, a large U.S. study designed to understand stroke risk. Researchers analyzed 11,381 people aged 45 and older who did not have stroke at the beginning of the migraine assessment period. The average age was 72, about 55% were women, and about 35% were Black participants.
Methodology
Participants were asked whether a healthcare professional had ever told them they had migraine headaches. Those who said yes were then asked whether their headaches included visual changes before the headache, which was used to classify migraine with aura.
Researchers followed participants for an average of about 6 years and looked for new ischemic strokes. They adjusted the analysis for major stroke risk factors, including age, race, income, hypertension, diabetes, smoking, atrial fibrillation, abnormal cholesterol, coronary artery disease, body mass index, and other vascular risks.
Key Findings
Migraine with aura was associated with higher ischemic stroke risk. People with migraine aura had a 73% higher relative risk of ischemic stroke compared with people without migraine.
Migraine without aura did not show a significant increase. The study did not find a clear stroke-risk signal in people who had migraine without aura.
Absolute risk was still modest. Stroke occurred in about 4.7% of people with migraine aura, 3.3% of people with migraine without aura, and 3.4% of people without migraine.
The male signal was unexpected. Men under age 72 with migraine, with or without aura, had more than a 3.5-fold higher ischemic stroke risk. This pattern was not seen in women or older men.
The study shows association, not causation. Migraine aura may be a marker of vascular vulnerability, but the study cannot prove that migraine directly causes stroke.
Implications for Practice
For patients, this study should not create panic. A higher relative risk does not mean a stroke is likely to happen tomorrow. The more practical takeaway is that migraine with aura should be part of the conversation during routine cardiovascular risk checks, especially in midlife and older age.
For clinicians, the key question is not just “Do you have migraine?” It is also “Do you have aura?” Visual symptoms such as shimmering lights, zigzag lines, blind spots, or spreading blurry areas before a migraine may matter for vascular risk stratification. The American Migraine Foundation notes that stroke risk can rise further when migraine with aura is combined with other factors such as high blood pressure, obesity, and especially smoking.
This could shift practice toward more targeted counseling. Patients with migraine aura may benefit from aggressive management of modifiable risks: blood pressure control, smoking cessation, diabetes management, lipid optimization, physical activity, and screening for atrial fibrillation when appropriate. The study does not suggest that everyone with migraine aura needs aspirin, anticoagulation, or imaging. It suggests that aura deserves attention as part of the total risk picture.
For healthcare providers, the male finding is the most interesting part. Earlier migraine-stroke discussions often emphasized younger women, particularly when smoking or estrogen-containing contraception were involved. This study suggests middle-aged and older men with migraine may also deserve closer study and possibly more careful prevention counseling if future research confirms the signal.