It happens because this system does not properly regulate bodily functions such as blood pressure, heart rate, or breathing. POTS is a condition of the autonomic nervous system. They may also experience dizziness and a drop in blood pressure. Postural orthostatic tachycardia syndromeĪ person with postural orthostatic tachycardia syndrome (POTS) may experience an increased heart rate upon standing up. If there is an obvious cause of a heart rate change, such as pain or a fever, try addressing that first to see if the heart rate returns to normal. Taking a few deep breaths and trying calming exercises may help a person assess whether or not their heart rate really is dangerous. It is important to keep in mind that panicking about having a high heart rate may cause it to become even higher. Call a doctor if the heart rate suddenly changes after taking a new medication. Medications: Some medications, such as serotonin or attention deficit hyperactivity disorder drugs, may also change the heart rate.If a person has recently had caffeine and notices a higher heart rate, this might be why. Caffeine: Caffeine increases both heart rate and blood pressure.A person may also have a higher heart rate in intense heat. Fever: A fever can sometimes cause a higher heart rate. Pregnancy may also cause heart palpitations or an irregular heart rate. Normal activities also require more cardiovascular effort, so a person may find that relatively easy activities such as climbing stairs or taking short walks can cause the heart rate to climb much higher than usual. Pregnancy: A person’s heart rate increases if they are pregnant.Pain: Pain can cause the heart rate to climb much higher.Anxiety: People who are experiencing intense anxiety may have heart rates higher than 100 bpm, especially during a panic attack.Some factors that may cause a high heart rate include: In most cases, having a very high or very low heart rate is only dangerous when there is not an obvious explanation. Many different factors can influence a person’s heart rate. This table shows the ideal heart rate ranges for children during wakefulness and sleep: Like adults, factors such as anxiety, fever, and heat may influence their heart rate. In childrenĬhildren, especially young children, tend to have higher heart rates than adults. In deep sleep, the heart rate may fall below 60 bpm, especially in people who have very low heart rates while awake.Īfter waking, a person’s heart rate will begin increasing toward their usual resting heart rate. While sleepingįor most people, their sleeping heart rate will fall to the lower end of the normal resting heart rate range of 60–100 bpm. According to the AHA, a person can push themselves a little more or less depending on their heart rate target. If a person’s heart rate is temporarily outside of these numbers during exercise, it is not usually a medical emergency. People who exercise regularly may need very intense workouts to get their heart rate up. A person’s heart rate increase during exercise depends on many factors, including how intense the workout is and how fit they are.Ī very sedentary person might find that their heart rate increases when walking from one room to another.
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