For centuries the medical community and the public have recognized the healing properties of water. Water's resistive qualities and the human body's natural buoyancy combine to allow therapy and exercise without putting unnecessary stress on muscles and joints. Water is the ideal method in which to exercise or rehabilitate the body. Water provides an environment, which reduces body weight by 90%, decreasing stress and impact on the body. Warm water also reduces spasticity and relaxes muscles allowing individuals to move with greater mobility and less pain. By using underwater exercise in a pool, individuals gain the benefits of exercise without the compressive forces associated with the gravity of a land exercise setting. This type of aquatic fitness is ideal for persons suffering from arthritis, all kinds of injuries, and neurological disorders. Underwater exercise provides additional benefits from the increased confidence participants feel when they are in the water away from the pull of gravity.