Its called the Phiten Titanium Necklace and some elite runners - like Paula Radcliffe and Kara Goucher - swear by it. It's supposed to help you recover faster, relieving pain and stress. Kara Goucher says "I just believe that it will help me take more pain and so I can't be without it." Phiten not only makes necklaces, but also bracelets, wristbands and power sleeves. I must admit, the cost is pretty decent (apx $25-$47 for the necklace). I may be giving this one a try, especially on my 15+ mile days!
