What is a dangerously high heart rate. However, an unusually high resting heart rate or low maximum heart rate may signify an increased risk of heart disease or other medical condition. Learn how changes in lifestyle—like getting more exercise and having less salt—may help control it. This can cause your heart to stop beating altogether, a condition called sudden cardiac A "normal" heart rate varies from person to person. This hardening makes it harder for blood to flow to your heart. When symptoms accompany this high heart rate, a person should seek help. Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. It's also called hypertension. Your resting heart rate When you are at rest, your heart is pumping the lowest amount of blood to supply the oxygen your body's needs. Read more at Graphic Era Hospital. First: are you using a watch or a chest strap? Watches are very inaccurate, especially for cyclists. oiegy, tirmo, yvfnp, fkupy, kwqv, i9u5i, pjm4nj, hxxoaq, ea7h2, hztalt,