Bradycardia (also sinus bradycardia) is a slow resting heart rate, commonly under 60 beats per minute (BPM) as determined by an electrocardiogram. It is considered to be a normal heart rate during sleep, in young healthy or elderly adults, and in athletes. In some people, bradycardia below 60 BPM may be associated with fatigue, weakness, dizziness, sweating, and fainting. The term "relative bradycardia" is used to refer to a heart rate slower than an individual's typical resting heart rate. Athletes may have athletic heart syndrome, which includes bradycardia as part of the cardiovascular adaptations to training and participation. The word "bradycardia" is from the Greek βραδύς bradys "slow", and καρδία kardia "heart".
symptom of Calcium channel blocker toxicity
symptom of Type 2 diabetes
symptom of Graves' disease
symptom of Channelopathy
symptom of Pheochromocytoma
symptom of Dilated cardiomyopathy
symptom of Cushing's syndrome
symptom of Type 1 diabetes