Hygiene

Hygiene is commonly understood as preventing infection through cleanliness. In broader call, scientific terms hygiene is the maintenance of health and healthy living. Hygiene ranges from personal hygiene, through domestic up to occupational hygiene and public health; and involves healthy diet, cleanliness, and mental health.The term hygiene originates as a reference to Hygieia, who was a daughter of Asclepius and the goddess of health, cleanliness and sanitation.Outward signs of good hygiene include the absence of visible dirt including dust and stains on clothing or of bad odor/smells. Since the development of the germ theory of disease, hygiene has come to mean any practice leading to the absence of harmful levels of bacteria.