How does heart rate variability work? Your heart beats at a specific rate at all times. That rate changes depending on what you're doing at the time. Slower heart rates happen when you're resting or …

Sep 13, 2025 · Your heart rate is the number of times your heart beats in a minute. Your body automatically controls your heartbeat to match whatever you’re doing or what’s happening around you.

There’s usually no difference between your heart rate and your pulse rate (or the difference is very small). However, certain health conditions, medications or circumstances can make the pulse in your …

Jul 13, 2022 · The average heart rate of a developing fetus is 110 to 160 beats per minute. By monitoring your baby’s heart rate, your provider can tell if the heart rate is too high or low or …

Heart rate recovery (HRR) is a measurement of your heart’s ability to return to its normal, resting pace after you finish a workout. It’s the difference between your peak heart rate during exercise and your …

Jan 25, 2023 · Heart rate reserve is the difference between your maximum (peak) heart rate and your resting heart rate. Your maximum heart rate is the number of beats per minute your heart can reach …

It’s most commonly performed during labor when a fetus shows signs of a slow or irregular heart rate due to low amniotic fluid. Low amniotic fluid can compress the umbilical cord and cause other …

Aug 11, 2022 · Your pregnancy care provider diagnoses fetal distress by reading the fetal heart rate. A low heart rate, or unusual patterns in the heart rate, could signal fetal distress.

Some medications and health conditions can affect your max heart rate. If you are taking medications or have a medical condition , such as heart disease, high blood pressure or diabetes, ask your doctor if …

Sep 9, 2022 · Postural orthostatic tachycardia syndrome (POTS) is a condition that causes a number of symptoms when you transition from lying down to standing up, such as a fast heart rate, dizziness …