I've looked over the posts but not the links, so pardon me if this has been said already, but...

Our eating habits vary with the seasons - as do drinking habits, use of medicines, exercise, sources of stress (with accompanying hormone surges). Assuming that our mothers' lifestyles affect our prenatal environments, and that prenatal environments affect our brain development, isn't it reasonable to consider that the month of our birth (or more to the point, the month of our conception) might affect our personality?

Seasonal lifestyle variablity might be different in different locations - for example, the time of year when we have the most fresh produce in Canada may be the opposite in Australia - but serious astrologers incorporate location of birth into their work, not just time of birth.

For the record, I don't believe in astrology - I think what makes people find it convincing is the natural human ability to see yourself in a nonspecific and mostly positive description. However, it's interesting to consider ways that it might be valid, and I find the influence of food more likely than the influence of stars.

Marion