Floatation therapy, also known as sensory deprivation involves lying in a salt-water solution, in approximately 11 inches of water and 1100lbs of epsom salt. This results in almost zero outward distractions, allowing you to effortlessly redirect your focus inward to facilitate relaxation and introspection.
It’s likely to be the most relaxing thing you’ve ever experienced.
A float tank is not as much of an object as it is an environment. An environment whose purpose is to act as a counterbalance to every other interaction we have with the world around us. It is the pursuit of a pure nothingness. A place of rest. It is an environment that allows our bodies and our minds to sink away from the society that has been built around us, and to instead turn focus internally. A chance to check in with ourselves, uninhibited and unadulterated by the external forces that are otherwise omnipresent. There is no magic in the float tank, the magic is us. Our bodies have spent millions of years learning how to take care of themselves, and the float tank simply provides the optimum environment with which to do it.
Each tank holds a solution that is about 2/3 water and 1/3 Epsom salt. With the 10" solution that most tanks are designed to hold, this comes out to about 1000lbs of Epsom salt. The Epsom salt adds density to the water, which in turn makes our bodies very buoyant. As a person lies on their back in the float tank, their body floats on the surface, half in and half out of the water. This buoyancy has an incredibly rejuvenating effect on the human body.
The closet experience to this that most people know of is the Dead Sea, a hyper saline lake in Israel known for its ability to keep people afloat.
The temperature pf the water os kept at 93.5 degrees Fahrenheit, the average extra temperature of the human body. This is a temperature known as skin-receptor neutral, meaning the water creates no cues for the skin to report as tactile stimulation.
The tanks and rooms are soundproofed to block all noise from the outside world, and light-trapped to create complete and total darkness.
The combination of these elements creates an environment that is free from all external stimulation. Our bodies responds to this environment by basically taking a gigantic mental and physical sign of relief. No longer worried about filtering the outside world to look for potential danger, our production of stress-related hormones drop to almost nothing, our brainwaves lower in frequency to a state associated with mental relaxation and free-thinking, and there is a natural spike in the neurochemicals that me us feel joy.
All of this compounded by the inherent relaxation created by absorbing Epsom salt (Magnesium Sulfate). While used primarily in the float tank to actually make people float, Epsom salt comes with the added benefit of softening skin and hair, cleaning and detoxifying the body, and getting people the magnesium most of us are lacking.