Over three cups of coffee, will the chest become smaller?

Rumor

A new discovery by Swedish scientists has attracted a lot of attention because they point out that if girls drink more than three cups of coffee a day, their breasts will become smaller.

"is this really the case?"

Well, this "latest discovery" does exist-there are always some egg-aching scientists who study the relationship between chest size and coffee intake. However, when the media reported on the study by researchers at Lund University University in Sweden, they were suspected of taking it out of context and severely criticized the "title party". The important paper published in the British Journal of Cancer on the different effects of the two CYP1A2*1F genes on the relationship between coffee intake and chest size was omitted.

The researchers analyzed the data statistically by investigating the living habits of 269 healthy women, testing the CYP1A2*1F gene type, and collecting data on the size of their breasts. It was found that girls who drank a lot of coffee every day had smaller breasts than those who drank less coffee, while those with the CYP1A2*1F C-allele gene had little correlation between how much coffee they consumed and the size of their breasts.

This kind of research only found that there was a correlation between coffee intake and chest size in some people, which does not mean that drinking coffee leads to small breasts. Nor does it mean that drinking coffee will further lead to smaller breasts-we find that the sun rises after a rooster crows, but it is not actually caused by a rooster crow.

Whatever the significance of the study, the conclusion will not be that "if girls drink more than three cups of coffee a day, their breasts will get smaller." Such a statement misleads people into thinking that if you continue to drink three cups of coffee a day, your breasts will slowly get smaller. To come to such a conclusion, an experiment is needed: one group drank three cups of coffee a day, one group drank one cup of coffee a day, and one group drank nothing. In addition, the three groups were required to have exactly the same diet and daily routine. After a while, see if there is any change in the size of their breasts, whether they are getting bigger or smaller. In other words, after excluding all other factors, examine the effect of coffee and the amount of coffee consumed on the same person's chest changes. This kind of experiment is the real egg pain.