Irritability: to feel tetchy, petulant; cranky and plain bad tempered. Aromatherapists will suggest boiling a pot of water infused with drops of peppermint oil to energize the mind, stimulate and cleanse the body and emotions of anger, nervousness and hysterics. Peppermint, a native of Asia, has been used for its healing properties the world over, from awakening the senses to soothing the gastrointestinal tract and clogged, inflamed sinuses. For one in five adults in the USA, who s...