In adults, the resting heart rate is lower than 60 beats/min (usually above 45 beats/min), it called sinus bradycardia, which can be seen in healthy people and athletes who have been engaged in heavy physical labor for a long time ,or it be seen in hypothyroidism, intracranial pressure Increased height, obstructive jaundice, and overdose of digitalis, quinidine, or propranolol. It should be considered sick sinus syndrome and atrioventricular block, if the heart rate is lower than 40 beats/min.Atrial fibrillation should be considered if the pulse is unequal, irregular, and less than the heart rate.
Heart rate can vary widely throughout the day and can be a good indicator of how well the heart is working. Heart rate may increase during exercise and decrease during meditation. If the reason for the increase or decrease in heart rate is unknown, it may indicate a problem.
Measuring heart rate 1-2 times a day, long-term adherence and observation of trends can effectively prevent risks.
A free heart rate app is recommended here, which can be measured directly with a mobile phone. The measurement results of this app are relatively accurate.
-Heart Rate APP：Heart Rate Monitor-Plus1Health on the App Store (apple.com)
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