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These collections range from formal, scientific articles to informal tidbits in the daily press. Although the material collected here is loosely divided into categories, many of the items could easily be categorized in more than one category. They have not been.
Go here for research abstracts on the same topics. Also have a look at our articles here (see left-hand menu when you get to that page).

The seeds of the unwelcome separation between man and woman are sown in our first passionate encounter with a partner. In some of us they bloom so rapidly that a "one-night stand" results. In others they take time to yield their unfortunate fruit of separation. Although it offends our notions of romance, a common mechanism, or "biological wedge," drives this separation behavior.