Health tech

Have you ever noticed your head rocking back and forth very slightly when you sit still? That's the effect of blood rushing up to feed your brain.

Now Massachusetts Institute of Technology researchers can accurately measure that phenomenon on regular video and figure out how fast someone's heart is beating. They say it might help detect cardiac disease.

The scientists at MIT's Computer Science and Artificial Intelligence Laboratory believe the algorithm could be used for video monitoring of patients with sensitive skin, such as newborns or elderly people. … Read more

As recently as the 1950s, one in three people diagnosed with Type 1 diabetes died within 25 years of diagnosis. People in the '50s had to monitor their glucose levels via urine testing and inject themselves with animal-derived insulin.

How far we've come. Today, researchers are working to develop an artificial pancreas for people with Type 1 diabetes that works with a smartphone or tablet to both monitors blood glucose levels and disperses insulin 24/7.

The goal, they say, is to reduce complications and improve the life expectancy of the millions of people with the metabolic disease -- because even though only 7 percent of them now die within 25 years of diagnosis, this rate is still far above general population mortality.… Read more

Time to assess the last of the four activity trackers I've been living with for over two months, the BodyMedia Fit.

If you're serious about tracking every calorie burned as accurately as possible, this makes the other trackers look like toys. But it's also the least comfortable to wear, and monthly subscription fees may also put some off.

BodyMedia sells two versions of the Fit. The "Core" version for $120 lacks Bluetooth and so can't talk directly to apps on your iPhone or Android device. The "Link" version sells for $150 and … Read more

How does our top layer of skin -- the thin stratum corneum -- manage to keep water inside our bodies and microbes out, all while maintaining strength and elasticity, at just a fraction of the thickness of a sheet of paper?

In the first tests of its kind, scientists at the University of Bath are using a tiny "microneedle" with atomic force microscopy to probe the surface of the top layer of human skin and solve some of these mysteries.

Until now, researchers were able to use this form of microscopy only to analyze the surface of corneocytes, the cells that form the outer layer of the epidermis. Now, by adding a nanoneedle to the end of the probe, they can delve below the surface and shine a light on the cell structure within.… Read more

Ladies and gentlemen, may I now present your deep thought of the day: People who play video games are better at playing video games than people who don't play video games.

OK, new findings out of Duke may be a bit more complex than that, but there's not much of a spoiler alert to this one. Hours spent at a gaming console seem to translate directly to a test, taken at a computer, of how the brain tracks visual stimuli, according to a new study at the Duke School of Medicine.… Read more

Nowadays breathalyzers are being used to detect far more than just how much alcohol one has imbibed. Researchers in Sweden are working on one that can spot marijuana and cocaine. Scientists in Germany are exploring one that can sniff out heart failure. And researchers in the U.S. are hard at work on one that can detect diseases such as diabetes.

And now, a group of chemists at the University of Pittsburgh is unveiling new sensor technology that could lead to a breathalyzer for not just the detection of diabetes, but the ongoing monitoring of it as well.… Read more

It's only a matter of time, really. Google Glass, Epson's Movierio, the Oculus Rift, and similar technologies are at the cutting edge of wearable technologies. Sci-fi has certainly given us a glimpse at the potential future: internal links to the Internet, augmented eyesight and hearing, perhaps even full cybernetic bodies to house our minds.

We'll have the technology, we will build it. The question is, presuming it's safe, would you embed yourself with technology?… Read more

In 2012, 83 firefighters died in the line of duty in the U.S. alone, and another 37 fatalities have been reported thus far in 2013. But, with better scouting tools, these numbers could be lowered.

Thank goodness for robots.

A new one out of the University of California, San Diego, may soon help first responders survey a fiery scene with its ability to enter a burning building and immediately transmit data on the state and location of the fire, the building's structural integrity, and the presence of any volatile gases -- all while on the lookout for survivors.… Read more

How close are we getting to actual brain control? It's starting to seem like it's not far off. On the sillier end of the spectrum, we've seen robotic ears and tails that respond to brainwaves, and more recently we've seen a brain interface for designing printable objects, a mind-controlled exoskeleton, and even mind-to-mind communication.

A team of researchers at the University of Minnesota has just added another exciting new technology to the list: a quadcopter that can perform feats of aerial agility, controlled entirely by the pilot's thoughts. … Read more