Why your co-worker might be listening to music tuned to 432 hertz

By Cathy Bussewitz NEW YORK (AP) — Yoselin Sanchez has been in chronic pain since she was born with cervical scoliosis. While little eases the discomfort, she’s found ways to distract herself from hurting. She practices yoga. She performs free flow dance. And while she works, she frequently lis...