- Women who had irregular periods were 28% more likely than women who had regular periods to develop heart disease.
- polycystic ovary syndrome (PCOS) and very long menstrual cycles -- have been linked to increased risks of type 2 diabetes, which is a heart disease risk factor.
Irregular menstrual periods tied to heart disease
http://www.reuters.com/article/idUSTRE64K5MS20100521