Handling thermal paper receipts may seem harmless, especially when quickly filling out details for a supermarket lucky draw, but recent studies highlight potential health concerns. Many receipts are coated with chemicals like BPA (Bisphenol A), BPS, and BPF, which are known endocrine disruptors. These substances can interfere with hormone function and may impact brain development, metabolism, and even increase the risk of certain cancers. BPA, commonly found in plastic-like coatings on receipts, can transfer to your skin upon contact. Just 10 seconds of exposure may introduce measurable levels of these chemicals into your body. Since receipts are often held briefly or stored in wallets, repeated contact can accumulate, raising health concerns especially for cashiers or those frequently handling receipts. Moreover, BPS and BPF, often used as BPA alternatives, have been shown in scientific reviews to be similarly carcinogenic and disruptive to the endocrine system. This means that switching to receipts labeled 'BPA-free' does not necessarily eliminate the risks. Another concern is that thermal paper can shed microplastics and microscopic chemical residues that may enter the environment or your skin, compounding exposure effects. To reduce risk, experts recommend minimizing direct contact with thermal receipts by opting for digital receipts when possible, washing hands after handling paper receipts, and avoiding storing them in places that contact skin for long periods. Being informed about these risks empowers you to make safer choices in everyday activities. Next time you participate in a lucky draw by writing on a receipt, remember these chemicals and take simple precautions to protect your endocrine health.