DTonesXD Posted May 19, 2014 Share Posted May 19, 2014 why do allergies exist? Link to comment Share on other sites More sharing options...
CharonY Posted May 19, 2014 Share Posted May 19, 2014 They exist because of the way our immune system works. Essentially it senses things entering our body and triggering an immune response. This is useful in cases of bacteria, but less so in case of pollen. Generally our body has not way to no beforehand what is going to be harmful or not, but in most cases harmless things only trigger mild inflammation (or no response at all). However, if you immune system is overly sensitive (e.g. due to lack of exposure to things in hyperhygienic environments as postulated by the hygiene theory) an allergy is the consequence. In extreme situations it may even mistake your own body as foreign and mount a response, and the result could be an autoimmune disease. Link to comment Share on other sites More sharing options...
DTonesXD Posted May 19, 2014 Author Share Posted May 19, 2014 Very interesting, thank you Link to comment Share on other sites More sharing options...
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