A sensory deprivation tank cuts a person off from as many sensory inputs as possible. Some research suggests it may help ease anxiety, relax muscles, and reduce pain. Although current research ...

A flotation tank - also known as an isolation tank, sensory-deprivation tank or "restricted environmental stimulation therapy" tank - is perhaps the closest possible simulation of being in the womb.

If you visit a flotation therapy center, you’ll put in earplugs and step into a rounded, podlike tub big enough for a tall person to lie back and stretch out. Depending on the center’s policies, you ...

“In the basement of a university medical school, Dr. Jessup floats naked in total darkness. The most terrifying experiment in the history of science is out of control … and the subject is himself.” So ...