The Link Between Being Overweight & the Risk of Cancer
IANS | Updated: July 13, 2017 14:31 IST
A new study which analysed data relating to more than five million people, has found links between being overweight and cancer. According to the study, published in the journal Lancet, more than 12,000 new cancers every year in Britain alone are associated with being overweight, Daily Mail reported.
The study indicates that being overweight can increase your risk of developing cancer. Researchers found that for every five point increase in a person's body mass index (BMI) they could be 62 percent more likely to be diagnosed with cancer of the uterus, and 25 percent more likely to develop kidney cancer.
"One of the ways being overweight increases the risk of cancer lies in the fact that excess fat doesn't just sit around your middle doing nothing - it produces hormones, one of which is oestrogen," weight-loss expert and NHS consultant Sally Norton was quoted as saying by the daily."After menopause, when the ovaries have stopped producing hormones, fat is the main source of oestrogen. This means that post-menopausal women who are overweight are at a greater risk of tumours that are stimulated by oestrogen," she said.
Excess fat not only increases the risk of some breast cancers, it also renders treatment less effective.
"As many as 41 percent of womb cancers may be attributable to obesity," said Norton. In the case of males, being obese increases the chance of colon cancer. "It is more likely in people with a higher waist to hip ratio and may be associated with increased insulin levels, seen in type 2 diabetes," Norton said. Around 10 percent of colon cancers are linked to obesity. Another type of cancer, thought to be linked to being overweight, is liver cancer.
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