Hygiene is the self-employment of practices which will keep one healthy. Among these practices are proper eating and body cleanliness . Sanitation is the effective use of measures which will create and maintain healthful environmental conditions. Among these measures are the safeguarding of food and water and the control of disease-carrying insects and animals . Military sanitation includes the practice of both environmental sanitation and personal hygiene, particularly within the framework of situations and experiences associated with Army life .
Mental fitness is necessary for total fitness.
Human Feces . At least one quart . To within one foot of the ground surface . They are used to purify water . Aerosol bomb - an insecticide .