How to stop headaches, tight shoulders and neck tension (bra-wearing women only!)

Remove the metal underwire supports from your bras. 

I'm not kidding.  My headaches stopped immediately.  And look at the decor possibilities for those leftover uplifters.

Perhaps it's something to do with bio-electrical fields being short-circuited by metal worn against the body.  Whatever.  I don't need massages anymore.  Or Advil.
P.S.  A bra still performs well enough without the metal struts, although the perk factor might, er, drop.