What is hygiene?

Hygiene refers to the set of practices perceived by a community to be associated with the preservation of health and healthy living.

While in modern medical sciences there are a set of standards of hygiene recommended for different situations, what is considered hygienic or not can vary between different cultures, genders and etarian groups. Some regular hygienenical practices may be considered good habits by a society while the neglect of hygiene can be considered disgusting.