Personal hygiene involves maintaining cleanliness and grooming of the external body through regular bathing, dental hygiene, hair care, nail trimming, and using deodorant and other products. Good personal hygiene habits like hand washing help protect against illness and controlling body odor as well as promoting overall health. Maintaining healthy personal hygiene involves bathing regularly, trimming nails, brushing and flossing teeth, washing hands and hair, and using deodorant, soap, and other hygiene products.