Those of you who know me or have attended one of my talks will know that I have been “batting on” for years about the chemicals in our food, our everyday personal care and beauty products, which can act like oestrogen in the body. They can be called endocrine disruptors, oestrogen mimics or hormone disrupting chemicals.
Well, a study has just come out from Denmark which has studied 1000 girls to look for signs of early breast development and has found that the average age of breast development has fallen by one whole year over the past 15 years when they last conducted a similar study.
I listened to a discussion on Radio Four with Tabitha Randell from Nottingham University Hospital and Professor Richard Sharp an expert on reproductive development from the Medical Research Council.
Some people may think that weight might be an issue and that girls are suffering from “puppy fat” but, in fact, it was shown that Body Mass Index had not had an impact.
So if obesity is not the reason for this early breast development, what is? Perhaps these girls’ own hormones were starting to work earlier but it was shown that the girls did not have higher levels of oestrodial, the key hormone in puberty.
Professor Sharp then went on to explain that it could be the endocrine disrupting chemicals in our food and cosmetics which are having an oestrogenic effect on our bodies. Tests on animals have suggested that this is possible. He also said that traces of HRT and the Pill in our water supplies were hard to detect but could not be dismissed.
Tabitha Randell explained that not all girls who show early breast development go on to start their periods early but some do go on to enter true puberty earlier, below the year of 8, and can then go on to start their periods at age 7 or 8 (menstruation usually starts about 2 years after breast buds start to form) which is a big thing for such a young girl to cope with. Also girls have their main growth spurt during puberty, which could mean that a girl entering puberty at around 6 or 7 could stop growing at around 9, which would make her a very short adult.
The other thing that wasn’t mentioned is that early puberty is a risk factor for breast cancer.
Currently, if a girl starts to develop breasts below the age of 8, she is given medication to block her hormones. This is usually given by injection every three months and is continued until she is 9 or 10.
Hopefully, a report like this will encourage mothers to take a safer approach to the food they buy and to avoid having harmful chemicals in their homes. I always advise mothers myself to buy personal care products and make-up for their daughters themselves so that they can choose brands which are free of these hormone disrupting chemicals.
Nikki Mattei