Coronavirus cases are rising in 22 of the 50 U.S. states, according to a Reuters analysis, a worrisome trend on a Labor Day holiday weekend traditionally filled with family gatherings and parties to mark the end of summer.

U.S. cases of the novel coronavirus surpassed six million as many states in the Midwest reported increasing infections, according to a Reuters tally.

More U.S. colleges were grappling with high numbers of students testing positive for the coronavirus just days into the start of the fall semester after some universities rolled back their campus reopening plans in recent weeks.

Poor sleep may be linked to a greater risk for poor mental health on college campuses, new research suggests.

Former U.S. National Football League (NFL) athletes who bulked up before and during their professional careers have an increased risk of heart disease and other health problems compared with other players, researchers say.