There are more papers on stress and floatation than any other ailment or disorder.
Our upright posture is unique and often exhilarating, but gives us, whether we are running, walking standing or sitting, a limited area of contact between our bodies and the earth, placing more stress on the body than it was created to withstand. When we’re walking or running, for example, all the gravitational pressure of the entire body being jammed against the earth is focused with each step on one relatively small spot, creating thousands of pounds of pressure per square inch. This is the physical pressure we put on ourselves, without the mental overload emotional turmoil and expectations and goals we set ourselves.
For many firsthand accounts of floating being used as an effective method of stress reduction.