Evaluation of the Efficacy of Aromatherapy on the Well-being of Healthcare Professionals

Inclusion Criteria: * Healthcare professional ; * Working in a medical or surgical intensive care unit or in a operating room/anesthesia unit or in the emergency department; * Agrees not to use any topical, oral or inhaled essential oils during the two study periods, other than those specified in the study protocol; * Written informed consent; Exclusion Criteria: * Pregnant or breastfeeding woman; * Known allergies to essential oils; * Asthma; * Scheduled departure from the unit; * Antidepressant treatment or anxiolytic treatment; * Taking topical, oral or inhaled essential oils durink the week prior to inclusion.