Personal hygiene was the term for caring and maintaining the clean and healthy appearance of an individual. According to a diagnostic analysis run by Doctor Beverly Crusher in 2364, bad personal hygiene could have a negative impact on chromosomes. (TNG: "When The Bough Breaks" ) Unlike the Regressives, the mainstream Enarans used radioseptics as personal hygiene devices. Neelix, upon demonstrating these devices in 2372, pronounced the Enarans to be "very hygienic". (VOY: "Remember")