Thirty years of research have shown that teenagers’ biology prevents them from getting to sleep much before 11pm, and with most high schools starting classes around 8 am, they are chronically sleep deprived. Experts discuss how students and even the economy would benefit from later start times and the reasons many people and school districts still oppose the change.
Nearly 40 percent of American homes have a dog, and while dogs may be “man’s best friend,” sometimes they bite, and sometimes with serious consequences. An expert who has studied dog bites discusses the reality of breed temperament, especially when children are around, how to prevent bites, and whether breeds with dangerous reputations deserve them.
A look at the top medical headlines for the week of August 11, 2019.