Your resting heart rate could reveal hidden stroke risks, study warns

Resting heart rate could be a key indicator of stroke risk, according to new findings. Both very high and very low rates have been linked to increased dangers. Researchers now suggest this simple measurement deserves more attention in health checks.

A normal resting heart rate typically falls between 60 and 100 beats per minute (bpm). However, the study found that risks rise when rates move outside this range. Those with rates at or above 90 bpm faced a 45% higher chance of stroke compared to the average.

Extremely high heart rates were connected to both ischemic and hemorrhagic strokes. At the other end, very low rates—below 50 bpm—also raised concerns. Such slow rhythms (bradycardia) can reduce blood flow to the brain, potentially triggering ischemic strokes. The safest range appeared to be 60 to 69 bpm, where stroke risk was lowest. Even moderately low rates carried a 25% increased risk. The findings highlight how both extremes—whether too fast or too slow—can signal trouble.

The study underscores resting heart rate as a straightforward yet overlooked factor in stroke prevention. Rates below 50 bpm or at/above 90 bpm showed the strongest links to higher risks. Health professionals may now consider this measurement more closely in routine assessments.