Sarah Varney

As scientists race to develop a COVID-19 vaccine, experts say obesity could prove an impediment — a sobering prospect for a nation in which nearly half of all adults are obese. Photo credit Shutterstock licensed. SAN FRANCISCO, CA - For…

Used correctly and consistently, condoms are highly effective at preventing transmission of STDs, according to the CDC, a finding echoed by the American College of Obstetricians and Gynecologists and other major medical associations. But…