Your Body Has A Coach Now. And It Lives On Your Wrist
On any typical morning, people the world over wake up to their wearable telling them how well they slept last night. Their watch face, for example, may deliver a score of 61, indicating low recovery. That is information unavailable just a few years ago. But if you view yourself as a player in the game of life, who’s coaching you on what to do with all this health data?
In other words, the device on your wrist has, until now, described rather than prescribed. You still had to figure out what to do with the information. Enter AI, which excels at pattern detection, drawing meaningful inferences from large datasets. When it comes to health, the natural next step is an intelligent guide , one that can use all it knows about the signals your body emits to suggest what you should and should not do to optimize your health.
“Before about 2014, every health variable lived on a dashboard. You could go there and find the data. But you needed time to understand it and most people don’t have that time,” Dr. Tony Wu, founder and CEO of Alloop , a health-agent startup, told me. Before launching his company, Wu served as a biomedical signal processing researcher working with data troves to uncover meaning. The gap he saw in the market was this: for all the quantified-self movement has achieved by showing people their step counts and REM sleep, knowing is not doing. People still want advice on what to do with it.
More than a decade ago, researchers at the University of Pennsylvania’s Perelman School of Medicine identified the same problem. Mitesh Patel, David Asch and Kevin Volpp, all faculty at Penn and attending physicians at the Philadelphia VA Medical Center, wrote in JAMA that wearables could facilitate healthier habits but could not drive them on their own. “The gap between recording information and changing behavior is substantial, however, and while these devices are increasing in popularity, little evidence suggests that they are bridging the gap.”
To this point, a chart is not a plan and a tracker is not an agent. To see the difference in action, let’s compare a Google search to an AI agent. Imagine you wanted to find a nearby dentist. Before Agentic AI, you had to wade through pages of search results yourself. That beats combing through the Yellow Pages and calling every number in your area but it still eats up time. Nowadays? You can assign an AI agent to research the options and even book and pay on your behalf.
Of course, our bodies are more complex than our teeth and need more than a cleaning every six months. Staying healthy takes constant small interventions, precisely where an Agentic AI can help beyond delivering updates. Ben Hwang, chairman and CEO of Profusa , a company developing bio-engineered sensors to monitor body chemistry in real time, explained to me by email why a proactive health device can trump a reactive one. “If a data point is displayed passively, the window where a choice (what to eat, what to drink, when to stop or start certain activities) can make a difference could go by without the proper choices being made. We believe an active nudge from the system would be much more beneficial than passively displaying that data.” This speaks to the quantified-self movement, in which people take a more active role in their care. “Society today is more and more gravitating toward receiving insights rather than just data,” Hwang added.
Alloop’s answer to that demand is an app with an optional device. Launched in September, the app reads data from the watch or ring you may already own through Apple Health or Google Health Connect. You can also tell it what no sensor can see, such as what you ate or how you slept, which the company says gives its recommendations more context. From there the software drafts a plan and sends reminders on a schedule you approve. Alloop describes the agent as a companion rather than a coach, a doctor or a medical device.
Alloop is also developing a device of its own, the Trio, aimed at people who want more than a conventional smartwatch. The sensing core, a 2.4-gram module called the Cube, snaps into a wristband by day and a ring at night and records heart rate, heart rate variability, blood oxygen, respiratory rate and temperature, the same readings most trackers already take. A clip-on called the Halo lets you log a note by tapping and talking and answers with a ring of colored light or a buzz on the wrist. Alloop has yet to publish independent accuracy data for the Cube.
Either way, the agent is the differentiator. “A tracker gives you the truth in a dashboard. An agent comes to you,” Wu said. “It is proactive. It notices, it suggests, and with your approval it acts, whether that means adjusting a plan, logging a meal or setting a reminder.” The core app is free. Alloop’s revenue, if it comes, will come from optional AI add-ons and from hardware. Crowdfunding for the Trio will open soon, the company confirmed.
Alloop is the newcomer, developing the agent first. Established brands are adding one to products people already wear. Oura, the smart-ring maker that filed confidentially for an IPO in May, rolled out Oura Advisor to all of its members last year. Unlike a flesh-and-blood coach, it remembers everything a member has told it and uses that memory to shape its recommendations. The member can delete any of it at any time. “One of our greatest contributions to the domain of generative AI is the understanding of our members’ context,” Holly Shelton, Oura’s chief product officer, said in a statement when Advisor launched.
Shelton, answering my questions by email, said Oura chose to have Advisor speak first because members should not need to know the right question to ask. “Seeing a change in your sleep or stress is one thing; understanding what might be contributing to it and what you could do next is another,” she wrote. “If Advisor only waited for a question, we’d leave much of that work to the member.” Starting November 3, Advisor will also roll out multi-day plans, asking a few questions up front for additional context, checking in daily, and closing with a data summary of what worked. “The goal is to make health data more meaningful and useful: not just a score to check, but a clearer understanding of your own patterns and a way to take a next step that works for you,” Shelton said.
Looking forward, a key benefit of living in the Intelligence Age is the deepening symbiosis between thinking machines and humans. For all the doomerism about such advances, we live in extraordinary times, in which everyday people have far more insight into how their bodies work and, at last, informed guidance on how to maintain and even improve their health. Yes, the score of 61 will still be there tomorrow morning. The difference is that it has become, as Shelton put it, more than “just a score to check.”