60 to 100 beats a minute
Young children, under 10, have a resting heart rate range from 70 to 120 beats per minute. Adults generally have a resting heart rate of 60 to 100 beats per minute. Resting heart rate is an approximate measurement and one of many tools used for testing your health. Your resting heart rate is often a good determination as to how fit you are, as well as indicating if you're either over training or unwell-showing up as unexplained increases in resting heart rate. A heart rate of 38 beats per minute (bpm) can be normal in a well-trained endurance runner at age 60. The heart rate normally lowers at rest. And distance running over four years could cause a reduction in resting heart rate from 60 bpm to 38 bpm. My resting heart rate used to be 60 bpm (beats per minute). Last year in my prime shape after running four marathons in four months, I had a resting heart rate of 38 bpm. That is when I am sitting watching TV. 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. With. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats a 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. A normal resting heart rate for adults ranges from 60 to 100 beats a 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 a 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. Remember to take your resting heart rate over at least 3 days so that you can get an average reading. For example if on day one you record 72 bpm (beats per minute) day two you record 78 bpm and on day three you record 72 bpm, then your average is 74 bpm. Look at recording your resting heart rate for a full minute to make the test as accurate as possible. Your resting heart rate is often a good determination as to how fit you are, as well as indicating if you're either over training or unwell-showing up as unexplained increases in resting heart rate. A normal resting heart rate can range anywhere from 40 to 100 beats per minute. Below is a chart relating resting heart rate and fitness level. As can be seen on this chart, your resting heart rate can vary with your fitness level and with age — the fitter you are, generally the lower the resting heart rate.  Your resting heart rate is the heart pumping the lowest amount of blood you need because you’re not exercising. If you’re sitting or lying and you’re calm, relaxed and aren’t ill, your heart rate is normally between 60 (beats per minute) and 100 (beats per minute), Stein said. Your heart rate, or pulse, is the number of times your heart beats per minute. Normal heart rate varies from person to person. Knowing yours can be an important heart-health gauge. Most adults have a resting heart rate of 60-100 beats per minute (bpm). The fitter you are, the lower your resting heart rate is likely to be. For example, athletes may have a resting heart rate of 40-60 bpm or lower. You should contact your GP if you think your heart rate is continuously above 120 bpm or below 40 bpm, although this could just be normal for you. For adults 18 and older, a normal resting heart rate is between 60 and 100 beats per minute (bpm), depending on the person’s physical condition and age. For children ages 6 to 15, the normal resting heart rate is between 70 and 100 bpm, according to the AHA. But a heart rate lower than 60 doesn’t necessarily mean you have a medical problem. Active people often have lower heart rates because their heart muscles don't need to work as hard to maintain a steady beat. The normal resting adult human heart rate ranges from 60–100 bpm. Tachycardia is a fast heart rate, defined as above 100 bpm at rest. Bradycardia is a slow heart rate, defined as below 60 bpm at rest. During sleep a slow heartbeat with rates around 40–50 BPM is common and is considered normal. 
http://www.netfit.co.uk/fitness/test/resting-heart-rate.htm http://www.runnersworld.com/ask-the-sports-doc/is-my-resting-heart-rate-too-low http://www.mayoclinic.org/healthy-lifestyle/fitness/expert-answers/heart-rate/faq-20057979 http://www.mayoclinic.org/healthy-lifestyle/fitness/expert-answers/heart-rate/faq-20057979 http://www.netfit.co.uk/fitness/test/resting-heart-rate.htm http://www.topendsports.com/testing/heart-rate-resting-chart.htm http://www.heart.org/HEARTORG/Conditions/More/MyHeartandStrokeNews/All-About-Heart-Rate-Pulse_UCM_438850_Article.jsp http://www.nhs.uk/chq/Pages/2024.aspx?CategoryID=52 http://www.livescience.com/42081-normal-heart-rate.html https://en.wikipedia.org/wiki/Heart_rate
what should a resting heart rate