Menopause
The menopause transition typically begins between 40 and 50 years of age (average 47.5). The duration of perimenopause may be for up to eight years. Women will often, but not always, start these transitions (perimenopause and menopause) about the same time as their mother did.
International Menopause Society
The Society's official journal, "Climacteric", the Journal of Adult Women's Health and Medicine, was founded in 1998 and is listed in Index Medicus/MEDLINE. The editors-in-Chief are Anna Fenton (New Zealand), and Nick Panay (United Kingdom). It publishes international, original, peer-reviewed research on all aspects of aging in men and women, especially during the menopause and climacteric. The content of the journal covers the whole range of subject areas relevant to climacteric studies and adult women’s health and medicine, including underlying endocrinological changes, treatment of the symptoms of the menopause and other age-related changes, hormone replacement therapies, alternative therapies, effective life-style modifications, non-hormonal midlife changes, and the counselling and education of perimenopausal and postmenopausal patients.