Calms Heart

"Calms Heart" is not a recognized specific molecular target (such as an enzyme, receptor, or transporter) in canonical biological or pharmacological databases. Instead, it represents a therapeutic functional classification or clinical action, primarily utilized in Traditional Chinese Medicine (TCM) under the term "An Shen" (calming the spirit) to describe substances or acupuncture points that stabilize heart rhythm and reduce mental agitation [1, 6]. In a modern clinical context, this phrase is often used descriptively to characterize the effects of pharmaceuticals like beta-blockers or ivabradine, which reduce heart rate and suppress sympathetic overactivity [3, 10]. The "heart-calming" effect is physiologically mediated through several distinct targets, including the Beta-1 adrenergic receptor, the hyperpolarization-activated cyclic nucleotide-gated (HCN) channels, and the activation of the parasympathetic vagus nerve [1, 16]. Consequently, while it describes a vital therapeutic outcome for treating palpitations, tachycardia, and anxiety, it does not correspond to a single gene or protein entity [9, 11].

Other names

An ShenCalm the HeartCalm the SpiritHeart-calming actionStabilizing the Shen

The "calms heart" effect is achieved through diverse mechanisms including the blockade of Beta-1 adrenergic receptors to inhibit sympathetic stimulation, the inhibition of HCN4 pacemaker channels to slow heart rate, and the enhancement of GABAergic or vagal (parasympathetic) tone to stabilize cardiac rhythm and reduce central nervous system excitability [3, 8, 16].