Zothecula writes: A bio-feedback armband called BodyWave is the first of its kind to measure brainwave activity through the body, not the scalp. Instead of an EEG headset recording a user's concentration level, the Bodywave reads brainwaves at the arm by measuring the electric current given off by neurons firing in the brain. Bundled with an interactive software package called Play Attention, it reportedly enables interactive feedback and training towards peak mental performance. Apart from the obvious potential in sport, its ability to train attention and teach stress-control in mobile situations (much less obtrusively than wearing a headset) opens up wider potential. It has already found applications in education, industry and the military as well as in improving the lives of people with disabilities like Attention Deficit Hyperactivity Disorder (ADHD).