Health tech

Some people drive high.

They shouldn't, but they're high, so they don't really know what's good for them and what isn't.

Should they get stopped by police, the long nose of the law can sometimes sniff the presence of marijuana in their car.

Should they happen to have nosed their way into some cocaine, there might be traces of white powder around their nostrils.

As yet, though, there hasn't been a machine that can detect the presence of such drugs on one's breath, as there is for alcohol.

Scientists in Sweden, however, believe they have made some progress in creating such a device.… Read more

Using what they are calling "mechanical agitation," researchers out of the Georgia Institute of Technology say they've developed arrays that can sense touch with the same level of sensitivity as the human fingertip, which could result in better bots and prosthetics.

The transparent and flexible arrays use about 8,000 taxels, which are touch-sensitive transistors that can generate piezoelectric signals independently -- meaning they emit electricity when mechanically agitated. As the researchers report this week in the journal Science, each of those thousands of transistors comprises a bundle of some 1,500 zinc oxide nanowires, which connect … Read more

An interaction designer who makes sci-fi short films has spent the past three years developing what he says is the world's first Braille-enabled smartphone. He said that if testing goes well, the phones could hit stores by the end of this year.

Thanks in part to award money from Rolex, India-based designer Sumit Dagar has been collaborating with the Indian Institute of Technology Delhi and L V Prasad Eye Institute in Hyderabad to develop a prototype. The smartphone employs a haptic touch screen that elevates and depresses the content it receives, thereby transforming the data into touchable patterns.

Yes, this phone is essentially a shapeshifter.… Read more

The victims of the Boston Marathon bombing may have to live with the physical and emotional scars from the April 15 attack for the rest of their lives. For some of the injured, that includes learning how to live without one or more limbs.

More than 180 people were injured in the attack last week, with at least 13 people losing a limb or part of one. Right now, doctors are focused on recovery and making sure the victims are medically stable. But once the wounds heal, many of the patients will begin the process of being fit with a prosthetic device.

"This is not just about learning how to walk," Steve Fletcher, CPO, director of clinical resources at the American Board for Certification in Orthotics, Prosthetics and Pedorthics, told CBSNews.com. "It's a significant emotional, psychological, and physical recovery."

… Read more

Continuing my series of life with four different activity trackers, it's time to talk about the Fitbit One.

In what will likely disappoint several of my Fitbit-loving friends, it's my least favorite of the tracking devices I'm using because I do so many "non-step" activities. But the Fitbit does have a lot to offer, and I have high hopes for the forthcoming Fitbit Flex wristband.

For now...my life with the One.

Fitbit currently sells two trackers. The basic Fitbit Zip ($60) tracks steps taken, calories burned, and distance traveled. The Fitbit One that I've been using ($100) adds tracking of stairs climbed, hours of sleep, and sleep quality. A wristband version, the Fitbit Flex, will be out in the coming weeks. I'll be looking at that in the near future.… Read more

This may not be TomTom's first foray into the GPS sport watch business (that distinction came with the Nike+ SportWatch), but the announcement of the TomTom Runner and Multi-Sport are proof that the GPS hardware provider is getting serious about the fitness tech segment.

The Runner and Multi-Sport are based on identical core hardware but feature different software, wristbands, and accessories. The core unit uses a large, high-contrast, monochrome LCD display covered with Gorilla glass, so it should be up to being knocked around a bit. TomTom tells us that the display is not e-ink, but has been … Read more

I think most people who have tried yoga would agree: it's a great way to improve flexibility and blood flow, increase stamina and strength, and even reduce back and muscle pain.

OK, but how can you find nearby classes, especially if you're traveling or you've just moved to a new town?

Yep: there's an app for that. Om Finder for iOS locates nearby classes, studios, and instructors wherever you happen to be in the world. It needs a few tweaks, but it's definitely a handy tool for the om-minded.… Read more

No diversion can divert me from the fact that treadmills are boring. Even if the weather is bad, I'm not much of a TV viewer -- on or off the treadmill. And I often find the most energizing music to also be the most annoying. Reading on a treadmill can be downright nauseating.

But thanks to an experimental system out of Purdue University, I soon may be able to catch up on my backlog of New Yorker digital issues while clocking time on the dreaded tread.… Read more

It's hard to imagine life without a limb -- not just the physical difficulties, but how it might affect your relationship with your body, and your sense of how you're perceived by the world around you. One prosthetist is taking into account not just restoring limb function, but also the wearer's personality and style.

The Alternative Limb Project is the work of Sophie de Oliveira Barata, who, taking her honors degree from the London Arts University studying special-effects prosthetics, went to work as a sculptor for a prosthetics company. In her eight years there, she created realistic limbs and digits for amputees who wanted their new limbs to blend into their bodies.

de Oliveira Barata has continued this work with the Alternative Limb Project, and her realistic limbs, molded from casts of the customer's own body, are incredibly detailed. But some people prefer to stand out in a crowd. … Read more