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November 4, 2014

Let’s Tone Down Hope for ‘Wearables’

Summary:

There is an old line in Silicon Valley: “Never confuse a clear view with a short distance.” We should keep that in mind as we think about wearable devices such as the Apple watch that are designed, among other things, to help us monitor and improve our health. The view is crystal clear, but we’re still a long way from getting to the destination.

The vision is idyllic: Some day, a wearable device will monitor all our vital signs and relay the information second by second to a healthcare provider, where some combination of computers and doctors will monitor it. We’ll know two weeks ahead of time that we’re about to have a heart attack and will be able to head it off. Doctors, who currently spend only about seven minutes a year with the average patient, will mine the stream of information, spot chronic issues in more people and get them treatment for, say, high blood pressure. Our knowledge about health will increase exponentially because so many aspects of so many people will be tracked, and in real time.

Researchers say the change in health will be like what has happened with cars. We used to wait until we saw steam coming out from under the hood, then fix whatever was wrong. Those cars lasted 60,000 or 70,000 miles. Now we have sensors all over the place in cars, learn about problems before they become acute and gather voluminous data on what works and what doesn’t, so cars can keep getting better. As a result, many cars last more than 200,000 miles. With people, once we can get those sensors “under the hood,” we should also see huge improvements in health and life expectancy – engine performance, too.

But three major things have to happen before we achieve that idyllic vision, and only one is even close to reality.

The one change that could at least plausibly happen soon is that people adopt wearables en masse. No more of this buy a Fitbit, wear it for a couple of months and then set it aside. At least millions of people, and maybe tens of millions, will have to buy wearable devices and keep them on 24/7 for basically forever, just to really get the movement started. That sort of adoption will require smaller and better-designed wearables and far better battery life – the early line on the Apple watch is that it won’t even go a full day on a charge. Makers of wearables will also have to agree on standards so that all health data can be integrated into any software and analyzed by any healthcare provider. At the moment, every wearable maker wants to own the standard, and standards fights can take years to sort out, but with Apple working its magic on consumers and with Microsoft introducing a well-regarded device, it’s at least possible to imagine mass adoption within a few years.

That’s the easiest problem.

The most severe problem is that wearables aren’t yet close to collecting the really useful information. Wearables can monitor your pulse and provide a reasonable estimate of how many steps you take, but that’s not the good stuff, as far as medicine is concerned.

I got a tutorial on this almost 15 years ago from Astro Teller, who cofounded Body Media, a pioneer in the wearables field. He said the data he really needed was blood pressure and information from blood tests. Astro is a seriously smart fellow – the grandson of the principal developer of the hydrogen bomb, Edward Teller, Astro has since 2010 been directing the Google X laboratory, meaning he has the Google Glass, driverless car and many other cutting-edge projects reporting to him – but Body Media never cracked the code before being acquired by Jawbone for $110 million, principally for its patents, in 2013. While there are glimmerings of progress all over, no breakthrough seems especially close.

Google, for one, has a project in the Google X lab that puts sensors in contact lenses that can measure blood sugar and send a constant, wireless signal to a wearable device, giving diabetics a noninvasive way to monitor themselves. But the technology must now be calibrated for different conditions. What if the wearer is crying? What if the weather is dry? What if it’s raining? It’s not clear how close to market the technology is.

Others talk about having people swallow sensors that would roam the bloodstream and report on all kinds of conditions, including watching out for cancer, but those are far enough out that they still read like science fiction.

A company has a prototype of a device that would measure blood pressure constantly, but, even if that proves workable, the device needs to go through multiple iterations and become tiny enough that it can fit into a general-use device – people may wear one health-related device on an arm, but they won’t wear two or three or four.

The final hurdle that has to be cleared is doctors and other practitioners. When I talk to doctors about the idyllic vision for the future of healthcare, they look at me like I have two heads. They’re feeling swamped just trying to keep up in a world where they see the average patient a few minutes a year, and their problems will only get worse if talk of a physician shortage proves true. Now we want them to go from seven minutes a year to 525,600 (the number of minutes in a year) for each patient? Yeah, right.

Even if doctors and other practitioners sign up for this new world of healthcare, every support system will have to change. Computer systems will have to be set up to do the vast majority of monitoring. Software will have to be written. A new class of data analysts will have to be developed. Health practices will have to reshape themselves around data streams. Insurers will have to adjust coverage. Courts will have to sort out where liability for mistakes falls – with a programmer, a doctor, someone else?

You could start the clock now on all these changes in medical practices, and they’d still take years to sort out.

The key issue to monitor in the progress of wearables is the sensors. Once someone can easily capture blood pressure information or conduct some important blood test without breaking the skin, well, then we’re talking. At that point, consumer adoption will be a solvable problem. So will adoption by medical professionals, though that will be a long slog.

In the meantime, we will soon be able to buy our Apple watches, and we’ll have fun with them. We might even get a little healthier if we keep wearing the things and somehow feel the need to walk a bit more. But that shiny vision of a world where care, insurance and everything else about health changes because of wearables? That’s still a long way out there.

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About the Author

Paul Carroll is the editor-in-chief of Insurance Thought Leadership. He is also co-author of Billion Dollar Lessons: What You Can Learn From the Most Inexcusable Business Failures of the Last 25 Years and the author of a best-seller on IBM, published in 1993. Carroll spent 17 years at the Wall Street Journal as an editor and reporter; he was nominated twice for the Pulitzer Prize. He later was a finalist for a National Magazine Award.

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