I was speaking to a friend of mine who deals with back pain and he mentioned that apparently he is getting more referrals from people who keep a mobile phone in their back pocket. It could be pressing against sciatic nerve. This is something that could effect more people then they realise over a period of time,
http://en.wikipedia.org/wiki/Pirifor..._presentations
http://en.wikipedia.org/wiki/Pirifor..._presentations
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