An article from BBC News this morning indicates that researches in the US have determined that so-called "male menopause" is not due to hormonal changes, but is instead due to unhealthy habits, such as too much drinking, or perhaps just laziness.

Professor John McKinlay, of the New England Research Institutes says that a study involving 1700 men in Massachusetts showed only a 1% decline in testosterone production each year as men age, and no particular point at which there is a large swing.

The doctor suggests that the cause of most of the symptoms can be traced to bad habits and other health issues.

Clinicians at The Andropause Society (a non- profit organization providing treatment for "male menopause") say that this is just bad science and that they know there is a problem just by talking to the men that they see every day.