Women are used to be the caregivers, the heads of the household, and all the chores (lucky are those who have partners to share the responsibility); add to that being overwhelmed by technology, constantly being bombarded with all sorts of news, and information and you have women in desperate need of some escape, peace, quiet, rest, and relaxation.
Source: http://www.themostpopular.com.au/popular-bits-and-pieces-that-make-she-shed/