Can Melatonin Cause a Racing Heart
Melatonin is a hormone that helps regulate sleep. In some people, it can temporarily increase heart rate. This effect may feel like a racing or pounding heart, especially shortly after taking a dose.
Why Melatonin May Affect Heart Rate
Melatonin interacts with receptors in the heart and blood vessels. It can influence the autonomic nervous system, which controls heart rhythm. Higher doses, sensitivity, or interactions with other substances may amplify these effects.
When to Talk to a Doctor
Occasional mild changes in heart rate are common, but persistent or severe racing heart, dizziness, or chest discomfort should be evaluated by a healthcare professional. A doctor can check for interactions, dosage issues, or underlying conditions. For more information on heart symptoms, visit American Heart Association.
