Study shows aroma of black tea can help reduce stress levels

( Natural News ) Numerous aromatic substances can help lower stress levels. According to a study published in the Journal of Physiological Anthropology , inhaling the aroma of black tea is an effective stress-reliever . Data from a Japanese study has revealed that “[inhaling] the aroma of black tea may help to lower stress levels after a stressful task and improve mood prior to experiencing mental stress.” The researchers involved in the study set out to discover if certain food flavor components can affect stress-induced negative brain functions. The research team, which consisted of scientists from Chubu University , Mitsui Norin Co., Ltd. , Tokai University , and the University of Shizuoka , analyzed the alleviating effects of two kinds of black tea aromas (Assam and Darjeeling tea) on physical and psychological stress. Black tea contains high concentration of anti-stress components For the study, the researchers worked with 18 healthy volunteers (13 females and five males). The participants, who were aged 20 to 21 years old, were instructed to only consume water at least three hours before each trial began. The Uchida-Kraepelin test, a psycho-diagnostic test that includes arithmetic tasks which must be solved in under 30 minutes, was used to induce stress in the participants. The test was split into two 15-minute sessions. Between the sessions, the volunteers had one minute to either inhale the aroma of black tea or be exposed to warm water (as a control). The salivary chromogranin-A (CgA) levels was used as a stress marker to analyze the effect of the inhalation of the black tea aroma in the participants. CgA is an acidic protein produced in response to stress. 100% organic essential oil sets now available for your home and personal care, including Rosemary, Oregano, Eucalyptus, Tea Tree, Clary Sage and more, all […]

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