Decreased heart rate

This picture shows sinus bradycardia seen in lead II with a heart rate of about 50 BPM.
Decreased heart rate or bradycardia can be described as a heart rate that is lower than the normal heart rate at rest. The average healthy human heart normally beats 60 to 100 times a minute when a person is at rest. When the heart rate fluctuates to lower levels under 60 BPM, it is described as bradycardia or an abnormally low heart rate. It is worth noting that decreased heart rate can often be a result of psychological symptoms as a natural response to relaxation, anxiety suppression, sedation, and mindfulness. Decreased heart rate is most commonly induced under the influence of heavy dosages of depressant compounds, such as GABAergics, and opioids. However, it can also occur under the influence of cannabinoids, dissociatives, and stimulants.




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