BOSTON, NNC – According to one study, air pollution can delay the age of women starting their first menstruation. Total Suspended Particulate Exposure (TSP), which is a circulating particle in the air the size of 0.05mm, can also caused young women to experience irregular menstrual cycle.
TSP, which mostly comes from vehicle exhaust and coal burning smoke, is thought to interfere with reproduction hormone in the human body.
In women, this can lead to excessive male hormones, such as testosterone, which researchers say may delay or affect menstruation.
"While exposure to air pollution is associated with cardiovascular and pulmonary disease, this study suggests that there may be other systems, such as the reproductive endocrine system, which is also affected," said study author Dr Shruthi Mahalingaiah of Boston University, as quoted by the Daily Mail page, Monday (1/29/2018).
The researchers analyzed 34,832 women aged between 25 and 42 years enrolled in the Nurses Health Study in 1989. They investigated the TSP level in the air around the study participants' home, where they lived in high school. This information was obtained from the US Environmental Protection Agency.
Further results revealed that for every 45 pg/m3 increase in TSP exposure during high school, girls had an eight percent higher risk of suffering moderate or persistent irregularities during menstruation.
Previous studies have linked menstrual periods before the age of 12 years with risk of heart disease later in life. It is also associated with breast cancer because girls are exposed to higher levels of hormones that often accelerate the disease, such as estrogen.