Written by Editors, The Menopause Minute
www.redhotmamas.org
The research consisted of following a group of approximately 400 women ages 30-40+ who had not yet hit menopause at the start of the study in 1995. Over the next 13 years, the researchers interviewed the women each year to ask them questions about their health, including menopause symptoms. Only 55 of the women were completely free of hot flashes. Ninety of the women said they only had mild flashes, and the remaining 259 women reported moderate to severe hot flashes.
http://www.redhotmamas.org/component/content/article/119-volume84/878-long-lasting-hot-flashes