Vibration is a known stressor of lab animals. Indeed, it is used to induce stress in a number of models. Day-to-day vibrations experienced by animals include building ventilation, rack ventilation motor, movement of personnel and carts in the facility, operation of equipment with moving parts such as ventilated caging systems, cage washers, etc., and movement of neighboring animals. Vibration is known to have many of the same negative impacts on animals as does noise. It can lead to changes in breeding, food intake, weight gain, and a number of other physiological effects involving cardiovascular and stress pathways.