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Benifits of Float/REST therapy

Float therapy, also called restrictive environmental stimulation therapy (REST), is considered to be an alternative treatment in North America for physical and psychological problems and is accepted as a medical treatment in some European countries (13).  Float/REST involves lying in an isolation tank filled with body temperature water and 1000 pounds of Epsom salt. The environment is designed (8) to reduce or eliminate sensory signals (auditory or sound; gravity; gustatory or taste; olfactory or smell; proprioceptive channels or movement/position of body and body parts; speech; tactile or feeling; thermal or temperature; vestibular or inner ear re: give information about balance, motion, and overall equilibrium; and spatial orientation or visual).  Some people report feeling the benefits of float/REST immediately, but others take three sessions to experience them.

Float/REST has been proven beneficial in clinical studies for the following problems: stress, anxiety disorders (including generalized anxiety and social anxiety), burn out, depression, and pain management (including fibromyalgia, headache and arthritis). It is currently being studied as a treatment for PTSD (post traumatic stress disorder), autism, panic disorder, anxious depression, and mania in bipolar depression (anxiety, anger, and dysphoria) as well as the acute state of schizophrenia.  It is used for addictions treatment.

Positive effects of float/REST in clinical trials are as follows:  improving sleep quality, optimism (1;9), and a sense of well being.  It also improves breast milk production and lowers blood pressure (6). Float therapy can improve creativity and athletic and musical performance.   In clinical trials float/REST has shown that after 12 (45 minute) sessions, with two a week, the individual will get the maximum desired pain and stress relieve (13).

To learn more read on.

Psychological impact:  Float therapy has been shown to reduce negative psychological qualities or experiences while increasing positive ones, improving immune function, and lessening perceptions of pain (1; 2). Regarding stress, floating is more effective in those suffering from severe stress (harder to get to respond to stress reduction) than other techniques (13).

After 12 float sessions participants in one study (male and female) found that their areas of pain felt better, and their reported experiences of anxiety, depression and stress were lessened.  Conversely, their sleep quality, feelings of optimism and, in the case of nursing mothers’ their breast milk production improved (called prolactin).  All of these benefits, other than the prolactin, were maintained for up to 4 months after the last float session (2). Some have reported feelings of euphoria, increased creativity, and altered states of consciousness (13).

Burn out: for those individuals who are experiencing burn out and a lack of desire to return too, or continue, to work float therapy may be of benefit.  In a small study (six participants in a 10-week study) combining talk therapy with float therapy all of the participants reported an ability to continue working full time as well as reporting improvements to their quality of life and positive psychological transformations or experiences (7).

Generalized anxiety disorder: It also shows promise as a treatment for generalized anxiety disorder. For instance, in a human trial 37% of the treatment group had reached full remission, and problems with emotional regulation, sleep, and depression had improved.  The improvement to all the benefits, accept depression, were sustained for six months (3). This may be as float therapy has been shown to reduce levels of the stress hormone cortisol, along with levels of adrenocorticotropic hormone(ACTH), and the hormone that regulates the adrenal glands (4).  So, float therapy reduces activity in the area of the brain most associated with a stress response, the pituitary-adrenal axis.  ACTH (which increases cortisol) is released in reaction to stress.  ACTH is related to circadian rhythms and so sleep. it is produced when the HPA axis (hypothalamic-pituitary-adrenal axis) is stimulated by a potential stressor.  Long term activation results in, or contributes too, many health problems including anorexia, cardiovascular problems, depression, diabetes, hypertension, obesity, and osteoporosis (17).

Why float/REST may work for psychological problems: lies in its impact on stress related hormones, which are decreased by floating.  The HPA axis (hypothalamus pituitary adrenal) plays a primary role in the stress (fight or flight) response.  Its hormones (ACTH, epinephrine, nor-epinephrine, cortisol and aldosterone) have been shown to lower during float therapy.  This effect can last up to four months (16). The HPA axis (17) both affects, and is affected by, different brain and nervous system components.  It can also alter its functioning as a response to environmental influences. The HPA axis hormones can influence the autonomic nervous system, controlling these vital functions: body temperature, pain and appetite, blood pressure, heart rate, and digestion.  It also works with, and is affected by, many areas of the brain.  These include the limbic system, (region known to control mood and motivation), the amygdala (fear, responses to danger) and the hippocampus (memory formation, motivation and mood).

Other psychological problems Float/REST therapy may positively impact include PTSD (post traumatic stress disorder), panic disorder, anxious depression, and mania in bipolar depression (anxiety, anger, and dysphoria)  and the acute state of schizophrenia.

In one study, after three weeks of float therapy, subjects had lower circulating levels of the fight or flight response related hormone/neurotransmitter noradrenaline metabolite (3-methoxy-4-hydroxyphenyl ethylene glycol or MHPG). It was reduced significantly in the float group, but not the control group (10). This metabolite is the principle one for norepinephrine (also called noradrenaline in the brain and adrenaline in the blood) degradation and its presence in blood samples suggests that there was recent sympathetic nervous system activity. It is higher in people under stress or who are experiencing emotional distress. Here the peripheral nervous system is over-active leading to anxiety, emotional instability, insomnia, irritability, and (exaggerated) fear and aggression. These are symptoms of post traumatic stress disorder, panic disorder, generalized anxiety disorder, anxious depression, and mania (anxiety, anger, and dysphoria) in both bipolar depression and schizophrenia (acute state), amongst others.   This might explain the reports of individual war veterans who state that float therapy helped treat/ameliorate their PTSD symptoms, even when other therapies failed (28;5).

Over production of norepinephrine can lead to a depletion of it, or a reduction of it, in the neurons of the brain that respond to it. This may happen either through a degeneration of the neurons, or by a slowing of production of noradrenaline.  This depletion leads to an underactive system and symptoms of depression, including the following: hypo-arousal symptoms like insensitivity to stress and excessive tiredness or excessive time sleeping, called hypersomnia (10), as well as a lack of motivation, impaired cognitive processes (including intellectual skills), and poor appetite. A depletion of norepinephrine is also associated with eating disorder anorexia and with gambling addiction.

Currently research is being done (using fMRI technology and waterproof electrodes) to see how float therapy is affecting the amygdala, where we process fear and rage.  It is the amygdala that first gets information from the eyes and ears (sense organs) about potential danger.  The amygdala decides whether the sights and sounds signal danger.  If they do, a distress signal is sent to the hypothalamus. This is the area of the brain that communicates with body regarding the stress response, called fight or flight.  The hypothalamus uses the autonomic nervous system to do so.  This system controls the following: breathing, blood pressure, blood vessel dealation/constriction, heartbeat.  It is broken into two parts, the sympathetic nervous system and the parasympathetic nervous system. The first revs the body up for a fight or to take flight, the second calms it down after the danger is over (29).

During fight or flight, the hypothalamus first signals the adrenal glands to release hormone adrenaline (or epinephrine).   As the adrenaline rush dissipates, the hypothalamus initiates the second part of the stress response by producing stress hormones in the HPA axis. This system is responding to the hypothalamus releasing CRH (corticotropin releasing hormone).  This substance goes to the pituitary gland (in brain) which in turn makes ACTH (adrenocorticotropic hormone). ACTH then goes to the adrenal glands which produce cortisol.  This system keeps the body in the stress (fight/flight) response. When the brain perceives the stressor as having passed it should activate the second system, the autonomic nervous system.  But, if someone is under stress for a long time, this fails to happen and the body is always producing low levels of cortisol.  This leads to chronic stress and anxiety and health problems (29).   These problems include cardio vascular problems and obesity/weight gain.  The first is as constant upswings in epinephrine damages arteries and blood vessels, high blood pressure, and increased risk of stroke or heart attach.   The second is due to increased appetite and higher amounts of unused fat being stored in the body (29).

It is the amygdala which is usually affected by the anti-anxiety drug Ativan (Lorazepam, a benzodiazepine).  Regarding the fMRI study, the results are reported as looking promising.  The primary researcher, Dr. Justin Feinstein has stated that “the preliminary data is that the amygdala is shutting off post-float. (5).” Further, on other studies the effects of float therapy, after 12 sessions, have been shown to last up to four months (2).

Dr. Feinstein recently gave one float session to 50 participants to see if one session alone could be beneficial.  The participants reported a range of psychological problems: agoraphobia, anxiety (including generalized anxiety and social anxiety), depression, post traumatic stress disorder, and panic disorder (8).  Each person was given the Spielberger State Anxiety Inventory both before and after the float session.  It was found that one float session alone resulted in a robust decrease in felt anxiety and a significant enhancement in mood (happiness, overall well-being, relaxation and serenity) for the entire group (8). Floating greatly reduced reported depression, muscle tension, pain, negative affect or emotionality and stress. The anxious test subjects, in comparison to low/no anxiety subjects, experienced a greater response to floating. In fact, many tested as approaching non-anxious levels post float.  And, those with the highest reported anxiety to start with had the greatest reduction in distress.

Float therapy holds promise as a treatment for attention deficit hyperactivity disorder (ADHD) and Asperger syndrome, as well as being used in conjunction with psychotherapy for addictions (13).

Learning, creativity, and performance: floating can increase creativity and originality while altering states of consciousness.  This may be as sensory deprivation reduces what is called secondary processes, thoughts about current life events and abstract thinking (logic, abstract, analytical, reality oriented) while increasing primary processes like imagination, intuition, and focus on the present (13).

A study using the Guilford Creativity Scale, State Personality Inventory (SPI) and the Profile of Mood STATES (POMS) found that the subjects who took a 1 hr float were more creative, had greater vigor, and lowered scores on anxiety, depression, fatigue, and tension (23). Those individuals who tested as more creative before floating showed a greater reduction in measures of depression and hostility scores more than lower creative types or those in the control group (sat in relaxing environment).  Women who tested as very creative to begin with deceased their fatigue and depression scores.  Pre-test highly creative males lowered their scores on hostility.  These subjects also showed a greater response to floating re: lowering anxiety, confusion, fatigue and tension (23).

A small study on university professors found that subjects were more creative regarding generating research ideas post float vs. sitting in their offices relaxing.  Further, mood ratings indicated that REST/float was associated with greater levels of vigor and lower levels of anger, depression, confusion, fatigue, and tension (24).

Another study, on university students studying intermediate level jazz improvisation, found that the students who floated 1 hr per week had higher ratings in improvised pieces, technical ability and higher final grades (25).

Athletic performance: has been improved by floating.  Here the unwanted effects associated with stress were reduced, and restoration after competition and training were accelerated (13). Floating has been shown to lower blood pressure and help dilate arteries for greater blood flow (13).  This would assist in injury healing. Floating has improved perceptual motor skills in sports (25).For instance, in a test on archers, those who floated for 45 minutes prior to marksmanship training had less perceived exertion during the training, had more consistency regarding their performance, and showed lower muscle tension (27).

Float/REST induces a more obvious primary process condition or deeper concentration. This state positively influences the closed skills needed for self paced sports (archery, diving, ice-skating, and marksmanship).   This skill set includes the following:  immediacy-focus, cognitive shift from verbal based (left) hemisphere to spatially dominated (right) hemisphere, narrowed span of attention, and relaxation (27).  This skill set can be used, if combined with visualization exercises in the tank, by coaches and athletes to reinforce (primary processing) desired skills/outcomes (27).

The reason for these changes may be that float/REST may elicit cerebral (brain) changes similar to those proposed in the Dynamic Hemispheric Asymmetry (DHA) model.  This suggests that float/REST allows the normally non-dominant part of the brain (cortical hemisphere) to become more active and have greater influence on both affective (emotional) and cognitive (thought) processes. This model hypothesizes that float/REST engenders more cortical hemisphere control, resulting in the positive results of studies on float/REST subjects. These individuals were found to be more perceptive and creative while experiencing more brain activity (learning, memory, imagery, divergent thinking) as well as being more flexible regarding habits and attitudes (26).

Immune response: float therapy increases the hormone prolactin. This hormone, best known in association with breast milk production, is essential in metabolism, pancreatic development, and regulating the immune system (13).   One study found an enhanced immune response after floating, with an increase in T-lymphocytes and B-Lymphocytes (13). Prolactin helps men make sperm (14) and, in both sexes, plays a part in maintaining the myelin coating, the fat that coats axons in the CNS (15). This is important regarding brain health.

Regarding pain management and healing: float/REST therapy is shown in clinical trials to significantly benefit the following pain related features: decreased pain in general, decreased muscle tension, decreased pain caused by muscle tension, lessening of anxiety, magnesium absorption, mood elevation, and stress reduction (11). In fact, stress related pain is significantly reduced by float therapy (2).  After 12 sessions, 70 human subjects were able to sustain the positive effects for up to four months.  Regarding pain management specifically this study: concluded that floatation tank therapy is an effective method for the treatment of stress related pain” (pg. 154, 2).

Chronic Muscle pain (neck/back area) was shown in a clinical trial to improve, in both sexes by float therapy (9).  Here 20 people were given nine floats over a three-week period.  Most reported a significant improvement in sever perceived pain intensity.

Fibromyalgia sufferers response to float therapy has been studied.   in this condition stress may both cause and trigger the symptoms of Fibromyalgia (effecting 2% of the population, with more women effected).  Fibromyalgia symptoms include widespread pain in both muscles and bone (musculoskeletal pain), which is described as a dull ache arising from muscles. These can be constant and include knots that are trigger points, tension headaches and temporo-mandibular joint pain or TMJ. Other symptoms include irritable bowel syndrome or IBS, an inability to sleep restfully, and mood disturbances (anxiety and depression).

Fibromyalgia is benefitted by as little as three float/REST sessions (11).  Participants experienced the following reductions: in pain, how much they were bothered by pain, muscle tension, anxiety, stress, and sadness. They also experienced an increase in the following: ease of motion, well being, relaxation, and increased energy.  Importantly, the improvement was found to be cumulative over the sessions leading to longer term effects (11).

Other conditions positively impacted by floating include rheumatoid arthritis, muscle tension, headaches, and back injury (11).  Headache sufferers may find release as migraine headaches may result from magnesium deficiency as it relates to neurotransmitter release and vasoconstriction.  Individuals who suffer from this condition have lower levels of magnesium in the blood (12).  The American Academy of Neurology and the American Headache Society together concluded that magnesium therapy is prebaby effective in the prevention of migraines (12).  See a health care provider before pursuing this line of treatment. Floating may positively impact bone health and vitamin D absorption.  Magnesium affects bone health as it influences the concentrations of both parathyroid hormone (so it helps thyroid problems) and the active form of vitamin D.  these are both needed for bone homeostasis.  So, magnesium is needed to maintain bone mineral density in both sexes (12). Women with lower levels of magnesium are at greater risk for osteoporosis.

Why float therapy works on pain: is due in part to the increase in magnesium.  Magnesium deficiency is associated with numbness, tingling, muscle spasms, cramping and twitching, personality changes, seizures, abnormal heart rhythm, and coronary spasms (12).  Interestingly bowl problems, (IBS is a symptoms of fibromyalgia) is known to cause magnesium deficiency.

Epsom salt (magnesium sulphate heptahydrate) may be absorbed through the skin and into the blood.  There is some experimental evidence to support this (18).  Magnesium has been shown in studies to be absorbed through hair follicles and sweat glands, which make up 1% of the skins surface. This doesn’t sound like much but given that the skin makes up about 10% of body mass and is the largest organ in the body, so it can still have an effect.  Samples of blood, urine, and hair indicating magnesium levels post transdermal (skin) absorption were higher after exposure to Epsom salts and remained higher for 24 hrs (18).

The sulfur in Epsom salt baths, proven to penetrate skin (21) is theorized to help increase an enzyme in cells called phenol sulfotransferase (PST).  This happens in the body after the sulfur from bath water, with the help of bodily processes, is changed to a sulfur the cells can use.  PST attaches the sulfate to other molecules (phenols) which are then more likely to be excreted in urine, leading to detoxication (22).  This is very important as if your body lacks sulfur, phenols accumulate and can interfere with CNS functioning. So,  phenols negatively effect many neurotransmitters (22).  An example is catecholamine sulfotransferase or M-PST, a type of PST that acts on neurotransmitters.

Other forms of sulfotransferase impact not only neurotransmitters, but hormones, proteins, and carbohydrates.  All of these components impact cellular health (22). Besides PST, sulfur helps make molecules governing the cell surface regarding chemical traffic (extracellular matrix) and is necessary for proper cell signalling by ions.  This is true of cells in the areas of the brain that process information about the senses, called the auditory, somatosensory, and vestibular (balance, motion, spatial orientation) systems, and the cerebellum (regulator of sensory systems regarding voluntary motor movements like speech, posture, coordination, muscle activity) as well as many cranial nerves (nerves going from brain to sense organs).

Besides the above, Float/REST may have success with pain as it has other effects on neurotransmitters.  For instance, those suffering form fibromyalgia have abnormal increases in pain signalling neurotransmitters.  Perhaps because pain receptors in the brain appear to develop a memory of pain and become sensitized to it, leading to overactions to pain signals (11). Those suffering from fibromyalgia have increased pain sensitivity, meaning that the connection between pain and arousal is amplified.  So, an increased pain sensitivity leads to higher arousal and exaggerated perception of pain (11).

Float sessions may, over the long term, reset the central pain sensitivity.  Self regulation is the result of float/REST sessions as it focuses attention away from external events and onto internal (mental and physical) events.  Here the individual is repeatedly exposed to physical symptoms while in a deeply relaxing (calming mentally and physically) environment. The brains sensitivity to pain may be reset by this combination of pain sensation and low arousal levels.  This effect is likened to the reconditioning of the emotional context of a traumatic memory during a deeply relaxed state (11) perhaps like EMDR therapy.

Skin appearance and health: is improved by bathing in Epsom salts. Water rich in magnesium has been shown to improve skin because it binds to water, influences skin health (30).  Magnesium improves moister content and the way it regenerates and changes (proliferation and differentiation).

A study on dead sea water and dry skin found that submerging limbs for 15-minute magnesium rich water.  It was found that after six weeks there was improvement to the following:  trans-epidermal water loss, skin hydration, skin roughness, and skin redness/inflammation.  The researchers said that bathing in magnesium rich water “significantly improved skin barrier function compared with the tap water treated control” (pg. 1).  In other words, magnesium baths moisturize (hydrate) skin. Those with the greatest problem with trans-dermal water loss experienced the most improvement (30).

Regarding weight loss: magnesium supplements have been shown to reduce body fat in women (19) and this may be why some people have claimed to experienced weight loss/reduction in inches after floating.

REFERENCES

1   Kjellgren, A., & Westman, J., (2014).  Beneficial effects of treatment with sensory isolation in floatation-tank as        a preventive health-care intervention-a randomized controlled pilot trial.  BMC Complementary &         Alternative Medicine, 14:417.  DOI: 10.1186/1472-6882-14-417).

2   Bood, S.A., Sundequest, U., Kjellgren, A., & Nordstrom, G., (2006).  Eliciting the relaxation response with the          help of flotation-REST (Restricted environmental stimulation technique) in patients with stress-related      ailments. International Journal of Stress Management, 13(2):154-175.   DOI: 10.1037/1072-5245.13.20154

3   Johsson, K., & Kjellgren, A., (2016).  Promising effects of treatment with flotation-REST (restricted            environmental stimulation technique) as an intervention for generalized anxiety disorder (GAD): a             randomized controlled pilot trial.  BMC Complementary Alternative Medicine, 16:108.  DOI:   10.1186/s12906-016-1089x.

4   Turner, J.W., & Fine, T.H., (1983).  Effects of relaxation associated with brief restricted environmental      stimulation therapy (REST) on plasma cortisol, ACTH, and LH.  Biofeedback Self Regulation, 8(1):115-126.

5   Oaklander, M., (2015).  Mental health treatment: How float clinics treat anxiety.  Time Magazine, Accessed on:       Jan 07, 2018.  Accessed at: time.com/floating/

6    van Dierendonck, D., & Te Nijenhuis, J., (2005).  Floatation restricted environmental stimulation therapy (REST) as a stress management tool: a meta analysis.  Psychology & Health, 20(3):405-412.  DOI:    10.1080/08870440412331337093.

7      Kjellgren, A., Buhrkall, H., & Norlander, T., 2010).  Psychotherapeutic treatment in combination with relaxation   in a flotation tank: effects on: burn-out syndrome”, The Qualitative Report, 15(5):1243-1269.

8   Feinstein, J.S., Khaisa, S.S., Yeh, H., Wohlrab, C. Simmons, W.K., Stein, M.B., & Paulus, M.P., (2018).  Examining the short-term anxiolytic and antidepressant effect of floatation REST.  PLoS One.  13(2): e0190292.  DOI:               10.1371/journal.pone.0190292.

9   Kjellgren, A., Sundequist, U., Norland, T., & Archer, T., (2001).  Effects of flotation REST on tension pain.                 Pain Res Manag 6(4): 181-190.

10 Yamamoto, K., Shinba, T., & Yoshii, M., (2014).  Psychiatric symptoms of noradrenergic dysfunction: a      pathophysiological view.  Psychiatry and Clinical Neuroscience 68:1-20.  DOI: 10.1111/pcn.12126.

11    Borrie, R., Russell, T., & Schneider, S., (2012).  The effects of flotation REST on the symptoms of Fibromyalgia.      Presentation at Float Summit 2012, Gothenburg, Sweden.

12   National Institute of Health, Office of Dietary Supplements website.  Webpage: Health Information, Magnesium, fact sheet for health professionals.   Accessed at: https://ods/od.nih.gov/factsheets/Magnesium-             HealthProfessional/#h5

13   Johsson, K., & Kjellgren, A., (2014). Curing the sick and creating supermen, how relaxation in flotation tanks is      advertised on the internet.  European Journal of Integrative Medicine, 6(5):601-609.   DOI:      10.1016/j.eujim.2014.05.005.

14   Hair, W.M., Gubbay, Ol, Jabour, H.N., Lincoln GA., (2002) Prolactin receptor expression in human testis and        accessory tissues: localizaiton and function.  Molecular Human Reproduction 8(7):606-611.  DOI:     10.1093/molehr/8.7.606.

15 Gregg, C., Shikar, V., Larsen, P., Mak, G., Chojacki, A., Yong, V.W., Weiss, S., (2007).  White matter plasticity and   enhanced remyelination in the maternal CNS. The Journal of Neuroscience. 27(8): 1812-1823.  DOI: 10.1523/JNEUROSCI.4441-06.2007.PMID17314279.

16     Fine, T.H., & Borrie, R. Flotation REST in applied psychophysiology.  Accessed at: www.joergo.de/tank/fine/htm

17    Chrousos, G., MD.  The stress response and its implications for pituitary tumors. Accessed at:    https://pituitary.org/medical-resources/pavilions/women-s-health-archive/the-stress-response-and-its-           implications-for-pituitary-tumors.

18   Grober, U., Werner, T, Vormann, J., & Kisters, K., (2017).  Myth or reality, transdermal magnesium?        Nutrients 9(8): 813.  DOI: 10.3390/nu9080813.

19   Moslehi, N., Vafa, M., Rahimi-Foroushani, A., & Golestaon, B., (2012).     Effects of oral magnesium          supplementation on inflammatory markers in middle aged overweight women.  Journal of Research in               Medical Sciences, 17(7):607-614.

20      Prosksch, E., Nissen, H., Bremgartner, M., & Urquhart, C., (2005).  Bathing in a magnesium rich Dead Sea salt   solution improves skin barrier function, enhances skin hydration, and reduces inflammation in atopic dry     skin.  International Journal of Dermatology, DOI:10.1111/j.1365-4632.2005.02079.x

21    Waring, R.H., (2013).  Report on absorption of magnesium sulfate (Epsom salts) across the skin.  Epsom Salt        Council.  Available online: http://www.epsomsaltcouncil.org/wp-                content/uploads/2015/10/report_on_absorptoin_of_magnesium_sulfate.pdf

22    Geng, L., (2012).  Epsom salt baths for therapeutic use and detox.  Pursuit of Research, promoting good nutrition                for special needs website.  Accessed at: pursuitofresearch.org/2012/09/Epsom-salt-baths-for-theiraputic-          use-and-detox/

23    Gorgays, D.G., & Forgays, D.K, (1992). Creative enhancement through flotation insolation.   Journal of   Environmental Psychology, 12:329-335.

24    Suedfeld, P., Metcalfe, J., & Bluck, S., (1987).  Enhancement of scientific creativity by flotation rest (restricted      environmental stimulation technique).  Journal of Environmental Psychology 7:219-231.

25    Vartania, O., & Suedfeld, P., (2011).  The effect of the flotation version of restricted environmental stimulation      technique (REST) on jazz improvisation.  Music and Medicine, an Interdisciplinary Journal, 3(4).  DOI:          10.1177/1943862111407640

26    Suedfeld, P., Steel, G., Wallbaum, B.C., Bluck, S., Livesey, N., & Capozzi, L., (1994).  Explaining the effects of        stimulus restriction; testing the dynamic hemispheric asymmetry hypothesis.  Journal of Environmental       Psychology, 14(2): 87-00. DOI: 10.1016/s0272-4944(05)8016-x.

27    Norlander, t., Archer, T., & Bergman, H., (1999).  Primary process in competitive archery performance: effects of flotation REST.  Journal of Applied Sport Psychology 11(2):194/209. DOI: 10.1080/10413209908404200.

28   Englel R., (2016).  Float therapy: A new method in PTSD treatment. Military 1. Accessed at:                 millitary1.com/ptsd/article/1641000014-float-therapy-a-new-method-in-ptsd-treatment/)

29   Harvard Health Publishing, Harvard Medical School website. Webpage: Understanding the stress response,          chronic activation of this survival mechanism impairs health, (March 20111/ updated May 2018). Accessed at: https://www.health.harvard.edu/staying-healthy/understanding-the-stress-response

30     Proksch, E., Nissen, H.P., Bremgartner, M., & Urquhart, C., (2005).  Bathing in a magnesium-rich dead sea salt solution improves skin barrier function, enhances skin hydration, and reduces inflammation in atopic dry     skin.  International Journal of Dermatology, 44(2):151-157.  DOI: 10.1111/j.1365-4632.2005.02079.x

 

6 Comments

  1. I suffer from arthritis and learned a lot about float therapy for pain management. thank you, I will try it.

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  4. thank you so much for the information. i have problems with anxiety and depression. My friend who floats keeps telling me I should try it. know that I have read this article I will.

  5. Thank you for this post. I flix and I find it helps my anxiety, but I did no know why it worked for me. Cheers.

  6. This is very detailed!! I’ve tried floating in the past, and I did find it relaxing.

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