After more than a year at home, children are heading back to classrooms across the country. But they’re also toting heavy bags on their backs again. A backpack that fits properly — and is not overloaded with binders and books — will help prevent injury. “With a focus on getting back in the classroom and…  read on >  read on >

Pregnant women infected with certain strains of human papillomavirus (HPV) may have a heightened risk of preterm birth, a new study suggests. HPV is a sexually transmitted disease that can cause genital warts. Most of the time, the immune system clears the infection. But some strains of HPV become persistent in a minority of people…  read on >  read on >

If a person is diagnosed with COVID-19 in the United States right now, it’s almost certainly caused by the Delta variant. The highly transmissible variant, which caused crippling surges in India and Britain this past spring and fueled case spikes in the United States this summer, is now responsible for over 99% of all cases…  read on >  read on >

A study of millions of people vaccinated against COVID-19 has identified those at greatest risk of hospitalization and death after breakthrough infection. The most vulnerable are those who are immunosuppressed from chemotherapy, a recent bone marrow or solid organ transplant, or HIV/AIDS. Also at risk are people with neurological disorders (such as dementia and Parkinson’s…  read on >  read on >

It’s not just athletes on the field who suffer when outdoor temperatures get too high. Members of college and high school marching bands are at increased risk of heat-related illness, too, researchers warn. “They go out there, and they often wear these really heavy wool uniforms,” said lead author Andrew Grundstein of the University of…  read on >  read on >

Emotional changes in the run-up to menopause can sometimes lead to depression. It can be important to see a doctor to help determine whether you’re just feeling stressed or “blue” — or whether you might have clinical or major depression, a condition associated with a chemical imbalance in the brain. Changing hormones during perimenopause —…  read on >  read on >

It’s no wonder many teens are pooped out. “The obligations of school, work, family and friends make it hard for teenagers to get sufficient sleep to perform their best,” said Dr. Raman Malhotra, president of the American Academy of Sleep Medicine (AASM). “While it might seem like teens sleep a lot, most are sleep deprived…  read on >  read on >