Chronic voice stress is a serious condition that can affect a variety of working professionals, including call center representatives, teachers, therapists and public relations professionals. And, employees looking to escape repetitive strain injuries in the hands and arms by using voice-activated computer systems may soon find themselves with an injury to their vocal cords. Prevent these painful injuries by learning how the injury develops, which habits contribute to vocal stress and what exercises help relax the muscles needed for speaking. For a complete list of available Tip Sheets and to learn about discounts for multiple-copy purchases, call 1-800-341-7874, ext. 347. Discounts are not available with on-line ordering.