Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Bergamot (Citrus bergamia) has a long-standing history of use in traditional medicine, particularly in Mediterranean regions. Its essential oil has been valued for its calming and mood-supportive properties, which are thought to indirectly support the parasympathetic nervous system (PNS)—the branch of the autonomic nervous system responsible for rest, digestion, and relaxation. Aromatherapists and traditional practitioners have recommended bergamot oil via inhalation or topical application (properly diluted) to promote relaxation and reduce stress, anxiety, and mild mood disturbances. These effects are believed to be due to its volatile compounds, such as linalool and limonene, which have demonstrated sedative or anxiolytic effects in animal studies, though human data are limited.

There is some preliminary scientific research supporting these traditional uses; small studies suggest that inhalation of bergamot oil may reduce heart rate and blood pressure, markers associated with parasympathetic activation. However, the evidence is not yet robust or consistent enough to be considered strong scientific validation, especially for direct support of the PNS. Most studies focus on subjective feelings of relaxation or anxiety rather than objective measures of parasympathetic activity. Thus, while bergamot is traditionally used to promote relaxation and may support the body’s natural parasympathetic response, more research is needed to confirm its effects and mechanisms.

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