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home:lifestyle:light:physics_of_light [04.06.2019] – [The spectrum] sallieqhome:lifestyle:light:physics_of_light [09.14.2022] (current) – external edit 127.0.0.1
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 The only radiation which is important when considering 1,25-D generation is radiation that carries considerable energy with it. For a given intensity of radiation, UV is the most energetic. The energy falls off with increasing wavelength (towards visible and IR). There still is enough energy for individuals with Th1 disease to sense, and be affected by, in hot plates and direct-radiation saunas, but lower intensities of IR energy do not cause any problems. The important characteristic of IR energy is that it cannot be seen.  The only radiation which is important when considering 1,25-D generation is radiation that carries considerable energy with it. For a given intensity of radiation, UV is the most energetic. The energy falls off with increasing wavelength (towards visible and IR). There still is enough energy for individuals with Th1 disease to sense, and be affected by, in hot plates and direct-radiation saunas, but lower intensities of IR energy do not cause any problems. The important characteristic of IR energy is that it cannot be seen. 
  
-The production of 1,25-D by the skin has very little to do with UV and everything to do with energy of the incident radiation. One study demonstrated that blocking ultraviolet-B rays did not reduce the production of 1,25-D in the skin.(({{pubmed>long:7726582}})) (The [[home:lifestyle:light:skin_protection#Sunscreen|sunscreen]] tested did not contain the broad spectrum sunscreen ingredient, zinc oxide. +The production of 1,25-D by the skin has very little to do with UV and everything to do with energy of the incident radiation. One study demonstrated that blocking ultraviolet-B rays did not reduce the production of 1,25-D in the skin.(({{pmid>long:7726582}})) (The [[home:lifestyle:light:skin_protection#Sunscreen|sunscreen]] tested did not contain the broad spectrum sunscreen ingredient, zinc oxide. 
  
  
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   * [[home:othertreatments:saunas|infrared saunas]] and infrared heaters   * [[home:othertreatments:saunas|infrared saunas]] and infrared heaters
   * saunas with electric coils under lava rocks   * saunas with electric coils under lava rocks
-  * Bioptron light therapy ([[http://www.therapyworld.co.nz/articledisplay.html?sku=14&Issue=03/01/04%20Issue%2009|This source]] states Bioptron light therapy is a source of infrared radiation. "The permeation effect is generated by the slightly calorific infrared portion of the Bioptron Light spectrum."+  * Bioptron light therapy ([[https://www.therapyworld.co.nz/articledisplay.html?sku=14&Issue=03/01/04%20Issue%2009|This source]] states Bioptron light therapy is a source of infrared radiation. "The permeation effect is generated by the slightly calorific infrared portion of the Bioptron Light spectrum."
   * Laser hair removal, because it targets hair follicles and heats them with infrared energy   * Laser hair removal, because it targets hair follicles and heats them with infrared energy
  
-===== Blocking incident radiation =====+==== Blocking incident radiation ====
  
 Ordinary window glass can block the UV wave lengths of invisible light, but it cannot block either the visible wave lengths of light nor can it block the IR wave lengths of invisible light. This effect is most noticeable when one feels the warmth of the sun's rays on the skin through the windows of a car, even if the windows are tinted, because some of the wave lengths can still penetrate the car windows. Window films, even those that claim to shield from UV and IR, that allow visible light to penetrate are not enough protection. Bright surfaces, like snow, concrete and sand, reflect UV light and can nearly double the amount that gets to the skin and eyes. Ordinary window glass can block the UV wave lengths of invisible light, but it cannot block either the visible wave lengths of light nor can it block the IR wave lengths of invisible light. This effect is most noticeable when one feels the warmth of the sun's rays on the skin through the windows of a car, even if the windows are tinted, because some of the wave lengths can still penetrate the car windows. Window films, even those that claim to shield from UV and IR, that allow visible light to penetrate are not enough protection. Bright surfaces, like snow, concrete and sand, reflect UV light and can nearly double the amount that gets to the skin and eyes.
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 Eye protection is essential for most MP patients. [[home:lifestyle:light:noirs|NoIR]] and other equivalent eyewear block IR and UV radiation in addition to most visible light. Eye protection is essential for most MP patients. [[home:lifestyle:light:noirs|NoIR]] and other equivalent eyewear block IR and UV radiation in addition to most visible light.
  
-==== the spectrum ====+===== The spectrum =====
  
 {{:home:lifestyle:light:enc_brit_spectrum1.jpg?400|spectrum}} {{:home:lifestyle:light:enc_brit_spectrum1.jpg?400|spectrum}}
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 {{tag>Lifestyle_modifications light}} {{tag>Lifestyle_modifications light}}
  
 +<nodisp>
 ===== Notes and comments ===== ===== Notes and comments =====
  
  
   *Legacy content   *Legacy content
-  * http://www.marshallprotocol.com/forum32/10683.html +  * https://www.marshallprotocol.com/forum32/10683.html 
-  * http://www.marshallprotocol.com/view_topic.php?id=2269&forum_id=2&jump_to=82715#p82715 +  * https://www.marshallprotocol.com/view_topic.php?id=2269&forum_id=2&jump_to=82715#p82715 
-  * http://www.marshallprotocol.com/view_topic.php?id=2572&forum_id=2&jump_to=86400#p86400 +  * https://www.marshallprotocol.com/view_topic.php?id=2572&forum_id=2&jump_to=86400#p86400 
-  * http://www.marshallprotocol.com/forum2/2566.html#p22376 +  * https://www.marshallprotocol.com/forum2/2566.html#p22376 
-  * http://www.marshallprotocol.com/view_topic.php?id=33&forum_id=2&jump_to=30275#p30275 +  * https://www.marshallprotocol.com/view_topic.php?id=33&forum_id=2&jump_to=30275#p30275 
-  * http://www.marshallprotocol.com/view_topic.php?id=4&forum_id=2&jump_to=37014#p37014+  * https://www.marshallprotocol.com/view_topic.php?id=4&forum_id=2&jump_to=37014#p37014 
 + 
 +===== References =====</nodisp>
  
-===== References ===== 
home/lifestyle/light/physics_of_light.1554512661.txt.gz · Last modified: 04.06.2019 by sallieq
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