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.
Harmful substances in e-cigarettes assessed While e-cigarettes are less harmful to health than tobacco cigarettes, the vapour from an e-cigarette contains substances and chemical impurities in concentrations that could be detrimental to heal
Further research into hazards posed by e-cigarettes Safety of nicotine-containing electronic cigarettes (e-cigarettes) cannot be confirmed because of the limited amount of published research in this area.