BHP Billiton  Chief Executive Andrew Mackenzie said on Monday that businesses could face a decade of damaging uncertainty if Britain voted to leave the European Union in a June 23 referendum. Mackenzie, boss of the world’s biggest mining company, said a vote for Brexit would inflict a serious blow on ... Read More »

ST. LOUIS, April 15 — Although stuttering has baffled scientists for centuries, researchers think they’ve pinned the primary cause down to a genetic mutation, which they say could eventually lead to a treatment for the condition. Stuttering is biological in origin, though can be made worse by anxiety or stress, ... Read More »