Violin teacher Constance Meyer’s chronic hacking cough was driving other people crazy. The mother of a new student figured out the cause — just in time.

"We really need to jump on this issue of ecological toxicity," he told Science News. "If the [study] authors are right, and ...

Abbreviations: LDDST = low dose dexamethasone suppression test; LH = luteinizing hormone; PCOS = polycystic ovarian syndrome; UFC = urinary free cortisol. Clinical features initially attributed to ...