There are three factors at work in a spa: heat, buoyancy and massage. Working together, they create a totally relaxing hydromassage experience. The heat in a hot tub raises your body temperature, increasing circulation. The buoyancy of the hot tub reduces your body weight by 90%*, relieving pressure on muscles and joints with a relaxing sensation of weightlessness. Through relaxing massage, our customers have reported that they experience the following benefits: Relief of tension in muscles and joints Temporary relief of aches and pains Decreased anxiety and stress Total, full-body relaxation *Body weight reduced by 90% with neck-depth immersion.