Health And Fitness Trackers Are Becoming A Lot More Granular

From counting 10,000 steps to reminding when to stand or take a few deep breaths, many Americans have become accustomed to devices quantifying their progress toward health goals. Is this just the beginning?

Businesses and researchers are dreaming up the next generation of methods to create and quantify personal data, with the aim of using the information to boost health and happiness. Some technologies are in their infancy, including machines that sit in the home, passively scanning for early signs of illness. Others are in limited use. Still others, such as smart thermometers and blood-glucose monitors, are widespread, but their proponents see untapped potential in the data they collect.

These advances bring concerns about security, as sensitive information is beamed up to the cloud, and privacy, especially in cases where manufacturers own data about their customers’ health that the customers themselves can’t access. It’s still too early to know exactly which metrics correspond to improved health, or whether zealously tracking them itself has negative impacts.

Natural Medicine

Research has shown that time outdoors can benefit well-being—but do certain natural settings have an outsize effect? NatureQuant, based in Bend, Ore., is aiming to quantify time in nature. This week, the company released NatureDose, an app that tracks people’s time indoors and outdoors as they go about their daily routines. The app can map the types of nature a person passes, whether a lake or tree-lined city street, through phone sensors including GPS and accelerometers. That data is paired with NatureQuant’s mapping systems to determine a person’s proximity to natural elements. The app is being tested in clinical trials in universities, with the aim of determining how time in nature impacts anxiety and depression. Eventually, the company hopes, health professionals could use the data to prescribe time in nature, even tailoring recommendations by lifestyle, season and locale. For example, the app could alert users with vitamin D deficiencies to the best time to catch UV rays.

Watch Your Mouth

Dentists have long advised brushing teeth for two minutes twice a day. In the future, quantifying dental data, such as tracking acidity in the mouth, may help forecast cavities before they happen and draw connections between oral health and other health issues. For example, night guards or other devices that measure specific biomarkers in saliva could uncover disease, such as inflammation of the gums that is linked to diabetes, says Dr. Corneliu Sima, an assistant professor of oral medicine, infection and immunity at the Harvard School of Dental Medicine. Camera-enabled toothbrushes could serve as oral scanners, beaming real-time information to dentists, who could use machine learning to sift through the data to determine whether patients need to come in for a visit, he says.

Body of Water

The well-known admonition to drink eight glasses of water a day has persuaded many Americans to lug around water bottles in the hopes of satisfying their hydration needs. Hydration, after all, has been shown to benefit brain function, heart health, digestion and other bodily functions. Is eight glasses really the right number for everybody? In the future, connected devices could help assess how much water is the optimum amount for each individual. The PÜL SmartCap, a mobile-connected water-bottle cap, recently hit the market promising to help consumers set goals and track their hydration levels with an accompanying app.

In the Blood

Some people are wearing blood-glucose monitoring devices, which continuously measure blood sugar via a small device worn on the arm, even if they don’t have diabetes. Elevated or spiking blood sugar is linked to heart disease, stroke and diabetes, so proponents of blood-glucose monitors say that tracking blood sugar could help wearers personalize their diets and live healthier lives. The Levels software, for example, allows users to watch their glucose levels on an app as they eat different foods, exercise and sleep. Ultimately, the company envisions people having several biosensor streams to help them optimize cell function and predict disease, says Dr. Casey Means, the chief medical officer of Levels.

The Wearable You Don’t Need to Wear

Researchers at the Massachusetts Institute of Technology have created a wall-mounted, laptop-size box that sits in the home, analyzing electromagnetic waves around residents as a noninvasive way of gauging health metrics. Using machine learning, the device can track breathing, heart rate, movement, gait, time in bed and the length and quality of sleep—even through walls. Health organizations, hospitals and medical schools are using the device. It is being used in clinical studies for Parkinson’s disease, Alzheimer’s and immune diseases and was used to monitor Covid-19 patients in isolation during the first wave of the pandemic. Dr. Dina Katabi, a professor at MIT’s computer science and artificial intelligence lab who led the project, says the boxes could be used in the homes of seniors and others to help detect early signs of serious medical conditions, and as an alternative to wearables.

Taking the Temperature

Thermometers are ubiquitous in households across the country. They are often the first medical tool that people consult once they start feeling sick. Aggregating those temperature readings and associated symptoms could someday quantify and diagnose illness at a population level. In the coming years, smart thermometers may be able to help determine whether patients have particular strains of flu or Covid-19, based on symptoms, temperature and other data collected in the area. Inder Singh, the founder of Kinsa, a San Francisco-based smart-thermometer company, says this kind of diagnosis could allow patients to bypass doctor visits and get medication quickly. Kinsa is working to turn its smart thermometers, introduced in 2013, into a system that detects outbreaks and tells people how and when they should seek treatment. The network has about 2.5 million thermometers in the U.S. so far.

Old Dog, New Tricks

Pet owners, including the many who adopted animals during the pandemic, are seeking to quantify the health of their furry friends as well. Whistle Fit, for example, offers a glimpse into a possible future for connected pet care. The 1.5-inch device affixes to a dog’s or cat’s collar and monitors its health, fitness and behaviour. Sensors collect data about a pet’s daily routine. Algorithms analyze the data to detect behavior tied to well-being, including playing, running, sleeping, exercising and drinking. After establishing a baseline, Whistle can determine whether a pet’s behaviour is changing. The owner can set exercise goals based on breed, age and weight. The company provides summaries to share with vets and alerts around behavioural problems like excessive licking or scratching.

The Right Amount of ZZZs

A plethora of products is already on the market to help people sleep. More futuristic offerings include robots that help lull patients to sleep with breathing exercises and “digital sleeping pills,” beamed through headbands that play music or soothing sounds when they sense users are about to wake up, says Dr. Seema Khosla, the medical director at the North Dakota Center for Sleep. Going forward, it would be helpful to have a bespoke assessment of how much sleep each individual needs, as opposed to the one-size-fits-all recommendation of eight hours, she says. Devices will likely be less clunky in the coming years, she says, sitting by the bedside with less need for physical contact with the sleeper.

When couples argue over money, the real source of the conflict usually isn’t on their bank statement.

Financial disagreements tend to be stand-ins for deeper issues in our relationships, researchers and couples counsellors said, since the way we use money is a reflection of our values, character and beliefs. Persistent fights over spending and saving often doom romantic partnerships: Even if you fix the money problem, the underlying issues remain.

To understand what the fights are really about, new research from social scientists at Carleton University in Ottawa began with a unique data set: more than 1,000 posts culled from a relationship forum on the social-media platform Reddit. Money was a major thread in the posts, which largely broke down into complaints about one-sided decision-making, uneven contributions, a lack of shared values and perceived unfairness or irresponsibility.

By analysing and categorising the candid messages, then interviewing hundreds of couples, the researchers said they have isolated some of the recurring patterns behind financial conflicts.

The research found that when partners disagree about mundane expenses, such as grocery bills and shop receipts, they tend to have better relationships. Fights about fair contributions to household finances and perceived financial irresponsibility are particularly detrimental, however.

While there is no cure-all to resolve the disputes, the antidote in many cases is to talk about money more, not less, said Johanna Peetz, a professor of psychology at Carleton who co-authored the study.

“You should discuss finances more in relationships, because then small things won’t escalate into bigger problems,” she said.

A partner might insist on taking a vacation the other can’t afford. Another married couple might want to separate their previously combined finances. Couples might also realize they no longer share values they originally brought to the relationship.

Recognise patterns

Differentiating between your own viewpoint on the money fight from that of your partner is no easy feat, said Thomas Faupl, a marriage and family psychotherapist in San Francisco. Where one person sees an easily solvable problem—overspending on groceries—the other might see an irrevocable rift in the relationship.

Faupl, who specialises in helping couples work through financial difficulties, said many partners succeed in finding common ground that can keep them connected amid heated discussions. Identifying recurring themes in the most frequent conflicts also helps.

“There is something very visceral about money, and for a lot of people, it has to do with security and power,” he said. “There’s permutations on the theme, and that could be around responsibility, it could be around control, it could be around power, it could be around fairness.”

Barbara Krenzer and John Stone first began their relationship more than three decades ago. Early on in their conversations, the Syracuse, N.Y.-based couple opened up about what they both felt to be most important in life: spending quality time with family and investing in lifelong memories.

“We didn’t buy into the big lifestyle,” Krenzer said. “Time is so important and we both valued that.”

For Krenzer and Stone, committing to that shared value meant making sacrifices. Krenzer, a physician, reduced her work hours while raising their three children. Stone trained as an attorney, but once Krenzer went back to full-time work, he looked for a job that let him spend the mornings with the children.

“Compromise: That’s a word they don’t say enough with marriage,” Krenzer said. “You have to get beyond the love and say, ‘Do I want to compromise for them and find that middle ground?’”

Money talks

Talking about numbers behind a behaviour can help bring a couple out of a fight and back to earth, Faupl said. One partner might rue the other’s tightfistedness, but a discussion of the numbers reveals the supposed tightwad is diligently saving money for the couple’s shared future.

“I get under the hood with people so we can get black-and-white numbers on the table,” he said. “Are these conversations accurate, or are they somehow emotionally based?”

Couples might follow tenets of good financial management and build wealth together, but conflict is bound to arise if one partner feels the other isn’t honouring that shared commitment, Faupl said.

“If your partner helps with your savings goals, then that feels instrumental to your own goals, and that is a powerful drive for feeling close to the partner and valuing that relationship,” he said.

A sense of mission

When it comes to sticking out the hard times, “sharing values is important, even more so than sharing personality traits,” Peetz said. In her own research, Peetz found that romantic partners who disagreed about shared values could one day split up as a result.

“That is the crux of the conflict often: They each have a different definition,” she said of themes such as fairness and responsibility.

And sometimes, it is worth it to really dig into the potentially difficult conversations around big money decisions. When things are working well, coming together to achieve these common goals—such as saving for your own retirement or preparing for your children’s financial future—will create intimacy, not money strife.

“That is a powerful drive for feeling close to the partner and valuing that relationship,” she said.