Health tech

Crisis: Teens have started sleep-texting

The burden of being a teen never lightens. You think you've got studying cracked, when along comes dating. You think you've got dating cracked, when along come drugs.

And then there are music and clothes and gadgets to deal with. It's too much.

This might (or might not) offer some explanation as to why teens have started texting in their sleep. Yes, it's just like sleepwalking, except you can be really, really mean. LOL.… Read more

Under Armour unveils its Nike FuelBand-killer

Under Armour is prepared to jump into the heavily contested field of fitness monitoring with its Armour39 system.

Armour39 consists of a sensor-equipped strap worn around the chest (or right below it); it includes a center sleeve for a "bug," which acts as a computer in storing and moving fitness data to the cloud via Bluetooth. Users can check their progress on a watch or by way of an app on the smartphone. The system will be available on March 20. The strap and bug will cost $149.99, while the optional watch accessory will cost $199.99. … Read more

Your smartphone knows which side of the brain you're using

Some people use the left, some the right, but which side of the brain do you primarily use for language? It may seem like a trivial question, but for one thing, if you ever have to undergo any type of brain surgery, the answer can help avoid damage to speech areas.

While lab tests can provide the answer, an app that involves a few minutes of concentration works just as well, according to a study in the journal Frontiers in Psychology.

Furthermore, a version of the app for patients with schizophrenia trains them to improve their focus so that when … Read more

Use your cell phone to detect mercury levels in water

It may not make your list of must-have camping gear, but a new sheet that detects mercury levels in water may prove useful to those who live or work downstream from industrial and mining sites (such as gold mines and coal-fired powered plants) and want to drink the local water.

When dipped in water for five minutes, the sheet, manufactured by chemists at the University of Burgos in Spain, signals the presence of mercury by turning red -- a process that can be seen with the naked eye.

Take a picture of that sheet with a digital camera, and you can learn the specific concentration of the mercury, a metal that is liquid at room temperature and has been found to cause long-term neurological issues after accumulating in the brain.… Read more

3D printing with stem cells could lead to printable organs

Some day in the future, when you need a kidney transplant, you may get a 3D-printed organ created just for you. If scientists are able to achieve that milestone, they may look back fondly at a breakthrough printing process pioneered by researchers at Heriot-Watt University in Scotland in collaboration with Roslin Cellab, a stem cell technology company.

The printer creates 3D spheroids using delicate embryonic cell cultures floating in a "bio ink" medium. They end up looking like little bubbles. Each droplet can contain as few as five stem cells. Basically, this comes down to the printer "ink" being stem cells rather than plastic or another material. … Read more

New device traps, then zaps, airborne pathogens

In the midst of this year's particularly bad flu season, we're reminded just how many nasty little particles roam the air we breathe -- from bacteria and viruses to allergens and diesel exhaust particulates.

But a new device that recently protected immunocompromised mice from these particulates has the potential to be both effective and safe for human use as well, according to researchers behind a new study published in the journal Applied and Environmental Microbiology.

"Small particles are difficult to remove, and our device overcomes that barrier," says Pratim Biswas, who chairs the Department of Energy, Environmental & Chemical Engineering at Washington University. In fact, the device not only traps the particles, it even inactivates them -- and that includes bioterror agents, Biswas says.… Read more

Trying to lose weight? Breathe into this gadget

Did you indulge at the Super Bowl party last night? Maybe you're still trying to work off the excesses of the holidays. Well, here's a dieting tool that's quite breathtaking -- literally.

Created by four Ph.Ds, mostly from Arizona State University, Breezing is a portable device that measures your metabolism using a method called indirect calorimetry. It analyzes your rates of oxygen consumption and carbon dioxide production.

You breathe into the mouse-size gadget that contains a sensor cartridge. It gauges your resting energy expenditure (REE), the metabolic rate indicating how quickly you're burning calories at rest. If you're trying to slim down, the faster the better. … Read more

Football-helmet sensor warns of concussion risk via phone app

As the Ravens take on the 49ers in New Orleans this weekend during the 47th Super Bowl, physicians will be on the lookout for more head injuries. There were over 160 in the 2012-13 NFL season, and it's become a larger problem as players get bigger and stronger.

The problem is that many concussions go undetected. Impakt Protective's Shockbox is a helmet g-force sensor that measures the impact a player sustains and gauges whether a medical assessment is in order.

The device can fit into any helmet with space amid the interior padding so that it's right … Read more

Artists use real-time MRI footage to create music video

Some see, not to mention make, art in unusual places. And so it is with U.K.-based musician Sivu, who is letting viewers peer inside his mind while he sings -- literally.

Reportedly inspired by the work being done on children born with cleft lips and palates at St. Bartholomew's Hospital in London, Sivu lay in an MRI scanner for almost three hours and sang his new single, "Better Man Than He," repeatedly. The resulting music video is an edit of that footage, relying on nothing but the relatively new real-time medical imaging technique often used … Read more

Travel sleep device straps your head to your seat

Judging by the number of weird sleep aid devices on the market, people must be desperate to catch a few quality winks. Getting in a decent nap is even harder when you're on the go. So far, we've seen a pillow that swallows your head and a neck contraption that holds your chin up. Now, meet the Relax Ally.

The Relax Alley on Indiegogo is described as a "travel restband." At first glance, it looks like a sporty headband you might wear to participate in a tennis tournament. Look closer and you see it has another band attached at the back. That second band hooks over the headrest of your seat. Tighten it up and your head is held in place.… Read more