El efecto de las Flores
Currently it is thought that there are seven basic emotions: happiness, surprise, sadness, fear, anger, disgust and contempt. All seven are defined by changes in the face, voice, and less visible physiological processes such as heartbeat rate. Duchenne (a 19th century physician) studied the physiognomy, origin and types of facial expressions that he considered intimately linked to the soul. In several controlled studies, flowers and their scents have been shown to be a powerful inducer of happiness in humans. The clearest symbol of happiness is the smile. At present, only two types are recognized, the truthful smile or Duchenne smile and the false smile or social smile. It has been proven that flowers always cause a true smile. This collection of sensory stimulation is represented through flowers.