Research published in The BMJ has linked (lasting 40 days or more) to a significantly higher risk of premature death —defined as dying before the age of 70. The large-scale study, which followed nearly 80,000 women over 24 years, suggests that a woman’s menstrual history acts as a "vital sign" for her overall long-term health. Key Findings of the Study
The link was strongest for deaths related to heart and blood vessel disease . The study found that irregular and long cycles were associated with higher rates of cardiovascular disease (CVD) independent of common risk factors like BMI or diet. Irregular, Long Periods Tied to Shorter Life Span
Long, irregular menstrual cycles may predict premature mortality Research published in The BMJ has linked (lasting
The research from Harvard T.H. Chan School of Public Health highlights several critical data points regarding life span and cycle characteristics: The study found that irregular and long cycles
The risk was highest for women who experienced consistently long or irregular periods throughout their entire reproductive life span , from adolescence through adulthood.