TA writes:  "Please help me to understand more on Q-link from Clarus company." In short, Q-Link is a complete scam. Now for the longer explanation. Q-Link is the sole product of Clarus, Inc. and is described as a "sleek pendant that tunes your being for optimal living: More energy, less stress, greater focus, and enhanced well being. No matter what you do, the Q-Link simply helps you feel better and gives you a creative edge by helping to harmonize your mind and body."   The Q-Link is based on the existence of an alleged subtle energy form known as a biofield. It's described by Clarus as "a  vital force that animates our bodies and powers our daily lives. When our biofield is out of balance, we're out of balance." Clarus claims the National Institutes of Health are investigating biofields but this means nothing because scientists have been looking for any evidence of the existence of this energy since the time of Sir Isaac Newton. The site goes on to explain that Q-Link and other SRT™ (Sympathetic Resonance Technology) products "support the body's innate intelligence, energetic systems and inbuilt capabilities - working like a series of optimally vibrating tuning forks to constantly resonate with, tune, enhance and support the body's own natural healthy frequencies." Those who wear these pendants, which range in price from $24.99 to $1199.95, supposedly report heightened energy and vitality, a "more rapid return to centered emotional balance" (whatever that means) and deeper and more restful sleep. When probing into the exact definition of Sympathetic Resonance Technology, the site provides the following mumbo-jumbo: " Sympathetic Resonance Technology™ or SRT™ is Clarus' first proprietary discovery which clarifies the fundamental information pathways between physical matter, linking to its conjunct non-hertzian field." They claim that everything physical has a fundamental field of non-hertzian energy made up of energetic vortices which are known as biofields - which means "non-existent" in the world of real science. I came across an article debunking these pendants by Ben Goldacre of the Guardian. He took one apart and found it to be nothing more than disconnected copper coils and fake circuit boards. An electronic component soldered to the center of the device looks impressive, but upon closer inspection, it too was found to be connected to absolutely nothing. Even though the famous New Age guru Deepak Chopra claims to feel "quite invigorated" while wearing a Q-link product, he is apparently experiencing the placebo effect because there is absolutely no science to back up any of these claims. The bottom line is that your money will be much better spent elsewhere.