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This is circuitry with a real twist that's able to monitor and deliver electrical impulses into living tissue. Elastic electronics are made of tiny, wavy silicon structures containing circuits that are thinner than a human hair, and bend and stretch with the body. "As the skin moves and deforms, the circuit can follow those deformations in a completely noninvasive way," says Rogers. He hopes elastic electronics will open a door to a whole range of what he calls "bio-integrated" medical devices.

A gadget to monitor your lifestyle. currently (june '11) In private beta. sounds really good. Uses extra sensors for biofeedback. Waiting until they run on android using open hardware and the hardware api.

A potentially amazing way to explore the human body Scientists in Switzerland have developed a novel way to monitor a neuron's electrical activity by bathing it in laser light. The technique, called holographic microscopy, doesn't require the invasive electrodes or dyes typically used to measure cell activity. Researchers say the approach could be used to rapidly screen new drugs designed to protect brain cells.

This fancy strip of torso garb keeps tabs on a patient's heart rate, temperature, and other vital signs as well as their position inside of the hospital itself with a GPS-like system that functions in closed spaces. This intelligent t-shirt can also detect the patient's position - if they're sitting, lying down, standing, walking, or running.

Here at PopSci we love a good broad agency announcement from DARPA (that's where they ask the private sector to do something technologically outrageous), but even next to the flying Humvees, the weather manipulation, the cyborg beetles, and the "hundred-year starships," this one, we have to say, is WAY out there. DARPA wants a genetic security system that's built into the genome that can monitor for and report on changes to an organism's genetic makeup.

Like fitbit. This is a wearable bit of kit that can track your daily habits. It can even remind you to be active or wake you up at the right part of your sleep cycle.  Complements an iphone app. Hopefully and android one will come along soon. Released in the US on november 6 2011. Not sure when it will reach the uk. 

About 400 people interested in serious self-tracking meet for the inaugural Quantified Self conference in May this year. Self-tracking means monitoring quantities like your weight, sleep, location, messages, genes, body chemistry, performance, productivity, or any other of a thousand metrics. Self-trackers arrived from all over the world to share and explore the whys and hows of self-tracking.