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.
Regional differences in testing rates underestimate incidence of LGV epidemic Until 2003, Lymphogranuloma venereum (LGV), an aggressive form of chlamydia, was considered to be a rare tropical disease, endemic to Africa, Asia and the Caribbean.
Preserving ozone treaty benefits to climate change The Montreal Protocol has not only served to protect the ozone layer, it also has provided a certain degree of climate protection.