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For seasonal affective disorder (SAD), a randomized controlled trial (RCT) comparing high (4.5x10 14 ions/second) and low (1.7x10 11 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]
Compared with the negative air ions produced in nature, although artificial methods can produce high levels of negative air ions, there are specific differences in the types and concentrations of negative air ions, which makes the negative air ions produced by artificial methods may not achieve the excellent environmental health effects of ...
This photo shows the sterilisation effects of negative air ionization on a chamber aerosolised with Salmonella enteritidis. The left sample is untreated; the right, treated. An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules.
In 1918 Alexander Chizhevsky had created the first air ioniser for ion therapy. This discovery was what had ignited Laws's interest in the little-known phenomenon of air ionisation, and with Idries Shah as co-director he formed Medion (not the German electronics company) [1] to investigate the benefits to human health, performance and ...
Since 1962, the microwave auditory effect or tinnitus has been shown from radio frequency exposure at levels below significant heating. [34] Studies during the 1960s in Europe and Russia claimed to show effects on humans, especially the nervous system, from low energy RF radiation; the studies were disputed at the time. [35] [36]
In a negative corona, the ions are attracted inward and the electrons are repelled outwards. The glow of the corona is caused by electrons recombining with positive ions to form neutral atoms. When the electron falls back to its original energy level, it releases a photon of light.
Chromium toxicity refers to any poisonous toxic effect in an organism or cell that results from exposure to specific forms of chromium—especially hexavalent chromium. [1] Hexavalent chromium and its compounds are toxic when inhaled or ingested. Trivalent chromium is a trace mineral that is essential to human
Delay (audio effect) (audio effects) (effects units) (musical techniques) Dellinger effect (radio communications) Dember effect (electrical phenomena) (physics) Demo effect (demoscene) Demonstration effect (human behavior) (sociological terms) Denomination effect (behavioral economics) Diderot effect (anthropology) (consumer behaviour)