Lower iodine concentrations in the urine was independently associated with higher testosterone levels, a cross-sectional study found. Looking at nearly 3,000 U.S. men, those with lower urinary iodine ...

The 13-year-old boy came to the clinic with a rapidly ballooning neck. Doctors were puzzled. Testing ruled out their first suspicion. But further tests pinpointed what they — and the boy — had been ...