Experts generally recommend seven to nine hours a night for healthy adults. Sleep scientists say new guidelines are needed to take into account an abundance of recent research in the field and to reflect that Americans are on average sleeping less than they did in the past.
Synonyms: inhabitation, domicile, habitation, home, dwelling, inhabitancy, abode, dwelling house. habitation. Abode, dwelling, and habitation are used with little difference of meaning to denote the place where one habitually lives; abode and habitation belong to the poetic or elevated style. Even dwelling is not used in familiar speech; a person says my house , my home , or more formally my residence ..
Habitat. Definition. noun, plural: habitats. (1) Place where an organism or a biological population normally lives or occurs.(2) The location or environment where an organism (or a thing) is most likely to be found, e.g. the body part of the host of a parasite as in the scalp of the host is the habitat of a head louse.3) The home to a particular organism where the species will attempt to be as adaptive as possible to that particular environment. (4) The place being occupied by an organism, population, or community. Supplement. Word origin: from Latin, it dwells, third person sing. present of habitÄre, to dwell.