In a new study, researchers looked at the chemical bisphenol A (BPA) found in stores, cash registers, cash points, or similar types of receipts.BPA has been widely used in the production of plastics and resins in the past, and due to health concerns, it is currently being used to a lesser extent because exposure to BPA can lead to a range of health problems such as obesity, heart disease, and prostate and breast cancers, as it can disrupt the action of certain hormones. Breast Cancer UK has therefore called for a ban on the use of BPA in food and drink packaging. Researchers have found that receipts containing BPA make up between 50 and 95 percent of receipts in France, Spain and Brazil. These are receipts printed on thermal paper, which has a coating that heats up rather than marking the paper with ink. Receipt handlers have been found to have higher levels of BPA in their urine, possibly due to the constant handling of receipts. The researchers therefore recommend that people throw unwanted copies of these types of receipts in the trash. This study was not limited to a geographic area, the number of samples collected was small, and the method of collection was not specified, so we do not know if the results are truly representative of the level of BPA use in receipts. The use of BPA and similar chemicals in receipts is currently widespread in Brazil, France, and Spain, and no corresponding studies have been found for China, so this cannot be confirmed. For those who are concerned, we should fold receipts inward, do not wrinkle them or handle them unnecessarily, do not store them in pockets or purses, store them in plastic bags if needed, and discard them when not needed.