Man, you guys are on a roll today.
I am torn on the issue of magnetic bracelets.
Until about 2 years ago, I thought like many of you that these things were useless. I had been experiencing acute shoulder pain for about 8 months. While on vacation, I stopped at a PGA superstore. The salesman was aggressively trying to sell me anything but I kept saying I was only looking because my shoulder may force me to give up golf. After numerous "Yeah, sure, I bet", he convinced me to try a Trion-Z bracelet to help with my shoulder. After wearing the bracelet for 3 weeks, my shoulder no longer bothered me even without pain medicine. I kept wearing the bracelet for a few months before I misplaced it.
I'm still not sure if this thing really worked, if enough time had passed for my shoulder to heal on it's own, or whether it was due to the placebo affect, but my shoulder stopped hurting and I've had no problems since.
I've been waiting on some other part of my body to begin hurting to tryout another one but thankfully everything's working fine right now.