What Type Of Hormone Speeds Up The Heart Beating?

What Type Of Hormone Speeds Up The Heart Beating? The sympathetic nervous system (SNS) releases the hormones (catecholamines – epinephrine and norepinephrine) to accelerate the heart rate. The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate. What stimulates the heart rate? Your heartbeat is triggered by electrical impulses that travel