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Examining the Short-term Anxiolytic and Antidepressant effect of floatation-REST

Research By: Feinstein JS, Khalsa SS, Yeh H-w, Wohlrab C, Simmons WK, Stein MB, Paulus MP



Participant Information

  • 50 participants, many with multiple disorders

  • 26 with Generalized Anxiety Disorder

  • 16 with Social Anxiety Disorder

  • 12 with Panic Disorder

  • 8 with Agoraphobia

  • 17 with Post-traumatic Stress Disorder

  • 92% of participants also suffered from unipolar Major Depression



Methods/Procedures

  • 3 types of measurement:

    • Baseline- used to measure symptoms/mood during the study

    • Pre/post float- used 30 min before float and 30 min after, to see the effects on symptoms/mood

    • Follow-up questions- questions concerning the participants’ overall float experience 


  • The floats were followed by a 43 question side effect list revolving around anxiety/depressive symptoms

  • An interview was performed after each float to gauge what the participants’ overall opinion on floating

  • Participants floated in open circular float tank w/ blue LED light that had the option of being turned off or kept on

  • Participants could remain in the tank for 60 minutes or stop their float early


Key Findings

  • 48 out of 50 of the participants floated for the full hour session

  • 50% of the participants floated with the light on

  • Minimal Negative side effects reported, most commonly itchiness and dry mouth

  • Many Positive side effects reported; feeling of complete serenity/relaxation and feeling revived/refreshed after the fact.

  • All participants reported decrease in overall anxiety, stress, depression, muscle tension; with an increase in mood and energy-levels.

  • 100% of participants would float again

  • 47/50 participants said floating could be used as a form of therapy/treatment


Practical Implications

  • The above evidence suggests that floating does have a large, positive effect on disorders such as Generalized Anxiety, Social Anxiety, Major Depression, PTSD, Panic Disorder, and Agoraphobia. The reductions in negative symptoms suggest that floating could be used as an effective form of treatment for those dealing with these conditions. 



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