IMMUNOLOGY

Detailed explanation-1: -Tachycardia is an increased heart rate for any reason. It can be a usual rise in heart rate caused by exercise or a stress response (sinus tachycardia). Sinus tachycardia is considered a symptom, not a disease. Tachycardia can also be caused by an irregular heart rhythm (arrhythmia).

Detailed explanation-2: -Heart palpitations (pal-pih-TAY-shuns) are feelings of having a fast-beating, fluttering or pounding heart. Stress, exercise, medication or, rarely, a medical condition can trigger them. Although heart palpitations can be worrisome, they’re usually harmless.

Detailed explanation-3: -There’s a connection between your heart rate and your pulse, but they aren’t the same. Your heart rate is how fast your heart is beating at a given time. Your pulse is how you can feel your heart rate. Every time your heart beats, it squeezes and propels blood through the network of arteries in your body.

Detailed explanation-4: -Does a high heart rate mean I have a problem with my heart? A. In otherwise healthy people, a heart rate at rest should be less than100 beats per minute at rest. Heart rates that are consistently above 100, even when the person is sitting quietly, can sometimes be caused by an abnormal heart rhythm.