Harvard University, reports "News Mail.RU", established that irregular and too long periods in women of reproductive age may indicate poor health in general. This fact is also associated with an increased risk of severe chronic diseases, including ovarian cancer, coronary heart disease, type 2 diabetes and mental disorders.
Experts analyzed the link between menstrual irregularities and premature death (before age 70). The analysis was based on data from nearly 80,000 women. Initially, none of the study participants suffered from cancer, diabetes, or cardiovascular disease. All women reported the average duration and regularity of the menstrual cycle at ages 14-17, 18-22, and 29-46 years. In total, the women were monitored for 24 years.
Moreover, every two years, data on lifestyle, nutrition, health status were recorded. During the observation period, approximately 2,000 study participants died at the age of less than 70 years. It turned out that irregular or long periods were associated with an increased risk of premature death. This was especially true for women who smoke. Women who, at 18-22 years old and 29-46 years old, had an interval between periods exceeding 40 days, more often than others died early. And, as a rule, the cause of early death was cardiovascular deviation.