Negative air ionization therapy

Negative air ionization therapy (NAIs) uses air ionisers as a non-pharmaceutical treatment for respiratory disease, allergy, or stress-related health conditions. The mainstream scientific community considers many applications of NAIs to be pseudoscience.[1][2][3][4][5][6] Many negative ion products release ozone, a chemical known to cause lung damage.[7]

Research

For Seasonal Affective Disorder (SAD), a randomized controlled trial (RCT) comparing high (4.5x1014 ions/second) and low (1.7x1011 ions/second) flow rate negative air ionization with bright light therapy found that the post-treatment improvement percentage was 57.1% for bright light, 47.9% for high-density ions and 22.7% for low-density ions.[8] An older RCT conducted by the same authors also found air ionization effective for SAD.[9] A 2007 review considers this therapy "under investigation" and suggests that it may be a helpful treatment for SAD.[10]

An RCT comparing the short-term effects of bright light, an auditory stimulus, and high and low-density negative ions on mood and alertness in mildly depressed and non-depressed adults found that the three first (active) stimuli, but not the low-density placebo, reduced depression on the Beck Depression Inventory scale.[citation needed] The auditory stimulus, bright light, and high-density ions all produced rapid mood changes - with small to medium effect sizes - in depressed and non-depressed subjects.[11]

Researchers have continued to cite a dearth of evidence about the effects of negative air ionization. "The presence of NAIs is credited for increasing psychological health, productivity, and overall well-being but without consistent or reliable evidence in therapeutic effects and with controversy in anti-microorganisms," researchers wrote in a 2018 article published in the International Journal of Molecular Sciences.[5]

See also

References

  1. ^ Alexander, Dominik D.; Bailey, William H.; Perez, Vanessa; Mitchell, Meghan E.; Su, Steave (9 September 2013). "Air ions and respiratory function outcomes: a comprehensive review". Journal of Negative Results in BioMedicine. 12: 14. doi:10.1186/1477-5751-12-14. PMC 3848581. PMID 24016271.
  2. ^ "Pseudoscience Sells". 14 September 2011.
  3. ^ Goldacre, Ben (2003-07-17). "The truth about oxygen". The Guardian. Retrieved 2018-07-02.
  4. ^ "Wonky Water Bunk". www.chem1.com.
  5. ^ a b Jiang, Shu-Ye; Ma, Ali; Ramachandran, Srinivasan (28 September 2018). "Negative Air Ions and Their Effects on Human Health and Air Quality Improvement". International Journal of Molecular Sciences. 19 (10): 2966. doi:10.3390/ijms19102966. PMC 6213340. PMID 30274196.
  6. ^ Della Vecchia, Alessandra; Mucci, Federico; Pozza, Andrea; Marazziti, Donatella (1 April 2021). "Negative Air Ions in Neuropsychiatric Disorders". Current Medicinal Chemistry. 28 (13): 2521–2539. doi:10.2174/0929867327666200630104550. PMID 32603272. S2CID 220289414.
  7. ^ My Video Got 2 Companies Shut Down! (And even worse negative ion products). YouTube. 19 January 2021. Archived from the original on 2021-12-21. Retrieved 26 January 2021.
  8. ^ Terman, M.; Terman, J. S. (2006). "Controlled Trial of Naturalistic Dawn Simulation and Negative Air Ionization for Seasonal Affective Disorder". American Journal of Psychiatry. 163 (12): 2126–33. doi:10.1176/appi.ajp.163.12.2126. PMID 17151164.
  9. ^ Terman, M.; Terman, J.; Ross, D. (1998). "A Controlled Trial of Timed Bright Light and Negative Air Ionization for Treatment of Winter Depression". Archives of General Psychiatry. 55 (10): 875–82. doi:10.1001/archpsyc.55.10.875. PMID 9783557.
  10. ^ Westrin, ÅS.; Lam, R. (2007). "Seasonal Affective Disorder: A Clinical Update". Annals of Clinical Psychiatry. 19 (4): 239–46. doi:10.1080/10401230701653476. PMID 18058281.
  11. ^ Goel, N.; Etwaroo, G. R. (2006). "Bright light, negative air ions and auditory stimuli produce rapid mood changes in a student population: a placebo-controlled study". Psychological Medicine. 36 (9): 1253–63. doi:10.1017/S0033291706008002. PMID 16756690. S2CID 22291389.

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