Pandora Dewan is a Senior Science Reporter at Newsweek based in London, UK. Her focus is reporting on science, health and technology. Pandora joined Newsweek in 2022 and previously worked as the ...

Head lice (Pediculus humanus capitis) are wingless insects that feed off human blood on the scalp. They are commonly found in school-age children, although anyone can contract them. The most prominent ...