Back injuries account for nearly 20% of workplace injuries and cost $20-50 billion annually in the US. Slips, trips and falls are another major cause of injuries, responsible for over 2 million disabling injuries per year on stairways alone. Proper lifting technique is important to avoid back injury - lift with your legs, keep the load close, and don't twist your body. General safety practices like keeping work areas clear and wearing slip-resistant shoes can also help prevent injuries.