Weight gain increases risk of breast cancer
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A new study to be published in the journal Cancer by Heather Spencer Feigelson of the American Cancer Society has found that women who gain weight as an adult have a greater chance of getting breast cancer later on in life.
The study looked at data from over 44.000 women and concluded that the more weight a woman gained – the greater chance she had of developing any type of breast cancer. Women who gained more than 60 pounds were either twice or three times as likely to develop certain types of cancers compared to those who only gained 20 pounds.
It is believed that the link between the two in breast cancer is due to fat tissue producing more estrogen. In estrogen positive tumors, estrogen helps the cancer to grow. I don’t have a copy of the Cancer paper, but according to Staff Nurse weight gain only increased the chance of developing estrogen positive tumors, not estrogen negative – in accordance with previous data.
A connection between cancer and obesity has been known a long time – this really is no surprise. I would like to see data that shows the link between a percent of weight gain rather total pounds gained. For some women gaining 20 pounds is a lot, but for others – if they are otherwise large women – 60 pounds may not be that much of a gain. If I can get a copy of the study, I will see if they looked at percent weight increase or not.
(Technorati Tags: breast cancer, weight gain, health, cancer, fat, estrogen)
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2 Responses to 'Weight gain increases risk of breast cancer'
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on June 2nd, 2006 at 4:48 am
Hi Trisha
Your blog is great – and these posts about breast cancer are really helpful. Thank you.
My wife Marjory has recently been diagnosed with breast cancer and we’re blogging about our experiences on
http://www.twinkletwinkles.com
We hope that the knowledge we’ve gained might help others in a similar situation.
Keep up the good work that you’re doing
Best wishes
Gordon and Marjory
on June 4th, 2006 at 7:25 pm
Thanks for stopping by Gordon – I’m glad my blog is helpful!
I only had time to glance at yours today, I will stop by it again real soon!