Young people who use screens before sleeping have more sleep problems Young people (13-18 years) who use light-emitting screens daily in the hour before going to sleep have more sleep problems.
Biobased alternatives to hormone disrupting substance in cash register receipts Chemicals made from vegetable or animal waste may be an alternative to the use of the substance Bisphenol A (BPA) in thermal paper. Thermal paper is widely used for cash register receipts.