Normal Heart rate | Sinus tachycardia and Sinus Bradycardia explained in tamil

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A normal resting heart rate for adults ranges from 60 to 100 beats per minute.

Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.


To measure your heart rate, simply check your pulse. Place your index and third fingers on your neck to the side of your windpipe. To check your pulse at your wrist, place two fingers between the bone and the tendon over your radial artery — which is located on the thumb side of your wrist.

When you feel your pulse, count the number of beats in 15 seconds. Multiply this number by four to calculate your beats per minute.

Keep in mind that many factors can influence heart rate, including:

Age
Fitness and activity levels
Being a smoker
Having cardiovascular disease, high cholesterol or diabetes
Air temperature
Body position (standing up or lying down, for example)
Emotions
Body size
Medications

Although there's a wide range of normal, an unusually high or low heart rate may indicate an underlying problem. Consult your doctor if your resting heart rate is consistently above 100 beats a minute (tachycardia) or if you're not a trained athlete and your resting heart rate is below 60 beats a minute (bradycardia) — especially if you have other signs or symptoms, such as fainting, dizziness or shortness of breath.

Common causes of Tachycardia include: Heart-related conditions such as high blood pressure (hypertension) Poor blood supply to the heart muscle due to coronary artery disease (atherosclerosis), heart valve disease, heart failure, heart muscle disease (cardiomyopathy), tumors, or infections.