The Purpose and Setup of Sensory Deprivation Tanks

sensory-deprevation-tankSensory deprivation involves a large tank which is filled up with water heated to 37 degrees Celsius, the same temperature as the body, and 1000 lbs., or some variation of this in smaller tanks, of Epsom salts are added, so that half of the body is underwater and half of it is above because of the density of the salt within the water. Human beings have low fat content on average and need this salt otherwise a participant would sink. An observer cannot distinguish between water and air because when within the tank as it feels the same, and after a short period of time, because there are no visual queues being that the tank is completely dark, in the absence of sensory input, an observer typically begins to think differently as the brain has more resources dedicated to thought as less surface area is compartmentalized for sensory stimuli. This process is extremely similar to meditation, however meditation takes both time and practice to achieve upon a consistent, reliable, and meaningful level, as opposed to a sensory deprivation tank in which reaching such a state is essentially automatic provided enough time passes within the tank for the observer. This experience ends instantaneously once the tanks door is opened however, unlike meditation or the use of pharmacological agents to achieve a psychedelic or intrinsic experience

The Danger of Air Pollution Gaining Access to the Brain


The reason pollution has a metallic taste and scent and that it burns the eyes when exposed to it is because the particles of air pollution are tiny enough that they can travel through nerve cells, and gain direct entry to the brain, where the olfactory bulbar meets the frontal cortex, as there is no blood-brain barrier at this point. The body protects itself through the blood-brain barrier, which means that particles within the bloodstream, cannot get directly into the brain. This system has a slight flaw however as the nose acts as a direct conduit for incredibly tiny particles to bypass this security mechanism