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Being active naturally speeds up your pulse, so you want to check your resting heart rate when determining if you may have an issue. Sit or lie down until your breathing is normal and you feel at rest, which usually takes at least 5 minutes. Face your palm toward the ceiling, and relax your arm and hand. You can also tilt your arm slightly toward your body. Since your heart is on your left side, your pulse will be easier to find on your left arm. This will be between your wrist and the tendon below your thumb. Press gently against your skin to find your pulse. You’ll feel a steady beat as your blood pumps through the vein.  You don't need to apply much pressure to find your pulse. In fact, pressing down too hard can make it harder to feel it. If you don’t feel your pulse, move your fingers around until you feel your heart beating. Set a timer or watch an analog clock for 1 minute. During this time, count the number of times your heart beats. Additionally, notice the pattern of your heart beats. A normal pulse feels like a slow, steady beat with little variation. However, you may notice irregular beats, such as missed (aka skipped) beats or extra (aka galloped) beats. If you frequently experience these irregularities, it might be a symptom of AFib. If your heart is beating rapidly, it may be a sign of AFib. However, it could also be caused by other conditions or lifestyle choices, such as drinking too much coffee. It’s best to see your doctor if you're experiencing a rapid pulse to make sure you get the right diagnosis. A healthy resting heart rate is usually between 60 to 100 beats per minute.

Summary:
Rest for 5 minutes before you take your pulse. Extend your left hand in front of you with your elbow slightly bent. Place your right index and middle fingers at the base of your left thumb. Use a clock or timer to count how many times your heart beats in 1 minute. Determine if your pulse feels irregular. Notice if your heart beat feels erratic or rises above 100 beats per minute.