In regards to electromagnetic frequency I know that I am affected easily (seemingly much like mercury). And we are even more so now bombarded with increasing cell phone usage, computer usage, video games usage and the list goes on and on. About a year ago I purchased one. By the way they are simple a necklace type thing you wear around your neck which contains a tuner, amplifier and a vibrating cell (for those of you that get the techno stuff, I don't). It wards off and or reduces damaging frequencies emitted out from these energy sources.
Anyhow Last year I started to wear one and havn't taken it off. I felt a reduction in stress, anxiety and fatique at the computer. Well they sent me a letter saying that they have a new upgraded one thats works even better especially due to the increase in EMF. (electro mag freq)I am tempted to get it. Does anyone else have any experience with these? It can't be "all in my head" can it? BTW the reason I did purchase it was because it had a year money back guarantee on
it. Thanks you guys for your insight. Diane

Hi Diane, I have a q-link. I've had it for about year,its the newer version with srt3 technology.
But i cant say i realy feel any different with it,
It was originaly designed for golfers to improve there game.

Here's an interseting study on the effects of the q-link

http://www.emf-health.com/research-bloodtest.htm

I had one and it made me worse. It certainly does something, but for me that something made me worse, so i got a refund. Some people benefit, so its worth trying. Getting a refund was no problem but its obviously a hassle.