The Anti-Stress iPod
It is a little box, about the size of an iPod, that takes your pulse when you put your thumb on it. It measures the micro-variations in pulse speed (similar to the pulse checking that Chinese and Ayurvedic doctors use) that determine which emotional state your brain is in. The blinks red if you are stressed out. You can then apply various relaxation techniques and the device tells you when you have managed to calm down.
Surprisingly, the best technique for reducing stress that the company recommends is appreciation. Thinking of something or someone you appreciate is a sure fire way of reducing stress. In Krishna consciousness we do this all the time. There is (or should be) so much appreciating: you appreciate your fellow devotee, your spiritual master, your food, your body, your mind (when you're not beating it into submission), your spiritualize intelligence, etc. So, Krishna consciousness, both directly, by meditation, and indirectly, by appreciation, reduces stress. Pretty cool, huh?
However, the ultimate goal of Krishna conscious meditation and appreciation is not to de-stress. That is just a welcome side-effect. The real goal is to stop repeated birth and death. No matter how stress-free you are, the body is still going to die.
So, Krishna gives it both: the best short-term anti-stress techniques and the best long-term solution. The HeartMath EmWave is useful because it can scientifically tell you how well the former is working.