The interesting and unusual origins of the float tank
The floatation tank was dreamt up and developed by Dr John.C.Lilly in 1950 while working at the National Institute of Mental Health. Lilly was an American neuroscientist, psychoanalyst, philosopher, writer and inventor. Intrigued to explore the nature of consciousness, he set out to create a system that would restrict environmental stimulation as much as possible and hopefully bring about discoveries of the mind.
In Lilly's original design, the floater was suspended upright, entirely underwater, using a breathing apparatus and mask to cover the head.
Over the years Lilly continued his experiments with sensory deprivation, simplifying and improving the general design of the floatation tank. His later design would incorporate Epsom salts to enable the body to lay in a more relaxing position without the need to protect the head with gear, as well as other refinements such as water heaters, filters and air pump. By the early 1970s, Lilly had perfected the floatation tank, which is typical of the designs used today.
By the 1970s, research began to explore the added health benefits float therapy provided. With the increase of scientific evidence, the floatation tanks popularity would rise all over the world and has now become a routine modality for personal well-being.