Do your breasts get smaller when you drink coffee every day? The research is unreliable.

Recently, a new discovery by Swedish scientists has been posted on Weibo, retweeting nearly a thousand times. Weibo pointed out that if girls drink more than three cups of coffee a day, their breasts will become smaller. Cancer researchers have found that half of women have a gene that shrinks breasts when they ingest caffeine and protects them from breast cancer. Is that true? Yesterday, the reporter asked the research gene and breast experts, it said, because there are metabolic genes in the human body, the body for caffeine absorption metabolism speed is different, resulting in different metabolic reactions, is likely to lead to chest shrinkage, but has nothing to do with the amount of coffee drunk every day, and drinking coffee every day will increase the risk of breast cancer.

Three cups of coffee will reduce your breasts.

The research is unreliable.

The study examined nearly 300 women. But Helena Kingslom of Lund University said women should not be alarmed by the findings.

Coffee drinkers don't have to worry about their breasts shrinking overnight, she explains. Although the breasts will become smaller, they will not disappear completely. If anyone tries to judge who drinks coffee based on a woman's bra size, he'll end up disappointed. Bras come in two size, cup size and bra circumference, so it's hard to tell which women drink coffee based on the bra.

Conversely, while caffeine may shrink women's breasts, coffee-drinking men have another effect: they enlarge their breasts. The study also found that caffeine has a beneficial side, helping to reduce a woman's risk of breast cancer.

The study was published in the British Journal of Cancer. Different from the original microblog, the relevant papers published by researchers at Lund University in Sweden actually mentioned two important CYP1A 2*1F genes. With them, coffee intake and breast size have different effects on results.

Between 1996 and 2006, the researchers analyzed data from 269 healthy women who were asked about their lifestyle habits, tested for CYP1A2 *1F genotype, and collected data on their breast size. Girls with CYP1A2 *1F C-allele had smaller breasts than those who drank less coffee, while those with CYP1A2 *1F A/A had little correlation between coffee intake and breast size.

"Such studies only found a correlation between coffee intake and breast size in a subset of people. It doesn't mean that drinking three cups of coffee a day causes breast shrinkage." Qi Ming, director of the Genetics Department of Zhejiang Medical University, believes that according to the conclusion of the original microblog, three groups of controlled experiments are needed: one group drinks three cups of coffee a day, one group drinks one cup of coffee a day, and one group drinks nothing at all. In addition, the three groups were required to eat and live exactly the same way. These experimental contents were not mentioned at all in the relevant papers, so this research is not reliable.

drink coffee every day

It's possible to shrink the bra.

"Our bodies do have genes that control breast size, such as height, weight, appearance, physical characteristics, all of which are formed by multiple genes." Qi Ming, director of the Genetics Department of the First Hospital of Zhejiang Medical University, specializes in dealing with genes. Although I haven't heard of rumors that coffee may cause breast reduction. But he told me that the CYP1A2 *1F genes mentioned in the British Journal of Cancer paper were a large family with many branch members involved in human metabolism. For example, the metabolism of food and drugs that everyone eats, through the liver and kidneys, varies from fast to slow, even more than 300 times different, all controlled by these genes.

"For example, some people eat the same food or drug, but it doesn't work when they eat regular doses. They have to eat many times more than ordinary people to be effective. Some people are just the opposite. Eating a little bit has a big reaction. This is the magic of this kind of gene." Qi Ming concluded that drinking coffee every day is likely to shrink the chest, that is because the body may absorb caffeine at different metabolic rates, in certain pathological conditions of the body, resulting in different metabolic reactions, resulting in smaller breasts.

Drinking coffee every day.

increased risk of breast cancer.

Women who are too full and feel that their breasts are overloaded can try to improve by drinking coffee, because experts speculate that coffee has the effect of helping to reduce breast size to some extent. A study published by the Canadian Women's Health Centre found that women who drank three cups of coffee a day had a 25 to 70 per cent lower risk of breast cancer, even among women with a family history of breast cancer.

Xu Haibin, director of breast surgery at the City Hospital, told reporters the opposite answer: "Epidemiological surveys abroad have confirmed that drinking coffee and red wine for a long time increases the risk of breast cancer."

Xu Haibin said, such as chocolate, coffee and other foods containing cocoa, have an exciting effect, eat will stimulate pituitary secretion increased. Eating it every day increases the risk of cancer.

Of course, he also mentioned that only foreigners generally drink a lot of coffee every day. In terms of eating habits, drinking coffee is not the main habit of Chinese people.

Want to keep your breasts healthy?

Ginseng, bird's nest, hazel membrane, eat less

Interview, found that many women for their own too large chest trouble, for this problem, the reporter specifically consulted the city breast surgery attending physician Yang Ou.

"The bust is too large, one is that the breasts themselves are large, and the other is that the breasts sag because of the loose ligaments. Generally, the cup is too large in D or more, and the nipple is 4 cm below the breast fold. Breast really too big, you can take drugs to inhibit breast hyperplasia. But some people are actually fat, breast glands are not many, this kind of people through exercise weight loss thin chest effect is better. For people with drooping breasts, you can also do a drooping suspension to reshape them."

Yang Ouou said, Want to keep breast health, Diet is best partial vegetarian, Because a lot of meat may contain feed hormones, Eat easy to cause breast cancer. In addition, health care products are best not to touch.

"Ginseng, bird's nest, and hazel membrane (ovaries of tree frogs) all contain estrogen. Eating them for a long time is bad for breasts." Yang Ouou said, In addition, Plasticizer is also a big killer for women, Many people are used to put a box of mineral water in the trunk of the car, But now the bottle is thinner and thinner, Plasticizer is easy to release, Eat it must be bad for breasts.