A dangerous heart rate varies depending on the individuals age, activity levels, and other factors. However, there are some general guidelines to follow. A typical resting pulse rate for adults is between 60 and 100 beats per minute (bpm) . A heart rate consistently above 100 bpm when youre not exercising may indicate a dangerous health condition, and you should see your healthcare provider right away if your heartbeat is this fast, especially if you also have symptoms such as dizziness or lightheadedness. On the other hand, a heart rate of fewer than 60 bpm could also be problematic, especially if you have symptoms such as lightheadedness, dizziness, or significant fatigue. However, its normal for athletes and more active people to have a lower heart rate in the 40s to 50s.
Certain underlying conditions are typically the true decider of what a “dangerous” heart rate is. If you’re already living with heart disease, heart failure, or a history of heart disease and notice a fluctuation in your heart rate, you should go to the doctor as soon as you can, as it could be a sign of a serious complication.
