Doctors weigh in: Are wearable fitness devices useful or just entertainment?

Do wearables help those with chronic disease?

The integration of wearable technology in healthcare has promised significant benefits for chronic disease management, yet the actual impact remains underexplored. This systematic review published in the Journal of Medical Internet Research...

Activity trackers promise to improve health by forcing us to examine the facts

Explore how modern fitness culture, rooted in capitalist ideals of productivity and control, shapes our perception of health and self-worth. The author blends cultural criticism with personal insight to examine the contradictions of the wellness industry, the rise of wearable tech, and what it means to "optimize" a body.

Obsessing over sleep metrics leads to worse sleep quality

Over one-third of Americans have used wearable technology to track their sleep, and the anxiety over having perfect sleep data, or orthosomnia, has made getting a good night's sleep more difficult. Experts agree that most devices cannot correctly assess sleep details, making the data unreliable.

Modernizing health data privacy: A call for comprehensive reform

Despite the advancements in medical technology and data collection, securing personal health data remains a pressing issue in the 21st century. This Forbes article analyzes the state of health data privacy, sheds light on the current shortcomings,...

Medical professionals have experimented with using mixed reality headsets

Devices like the Apple Vision Pro have helped doctors develop surgical plans for hip and knee replacements using software that provides 3D models and other tools. Virtual screens displayed by mixed reality devices can provide information related to surgical progress, a patient's vitals, and more.

Doctors are prescribing social activities—and seeing good results

Physicians, especially in the UK, are asking patients what they enjoy and then prescribing a consistent regimen of doing that type of activity to improve fitness and overall health, including community exercise classes, volunteering, and spending time in nature. This approach may provide better incentives to stick with an activity.

Predictive brain implants raise ethical concerns about patient autonomy after surgery

These devices can accurately forecast neurological events like seizures and suggest or even automatically deliver responses. Their constant monitoring and prescriptive functions may blur the line between patient choice and device influence.

Using fitness wearables to track muscle wasting in astronauts

All that exercising, and astronauts still are likely to lose a large amount of muscle mass while in microgravity. Astronauts can lose up to 20 percent of their muscle in as little as five days in space. Currently, tracking muscle loss means waiting until astronauts land to remeasure their muscle density post-trip. This article explains a NASA-backed fitness wearable that may be able to track muscle atrophy as it happens.

The fitness industry has seen a lot of fads—and Peloton might be one of them

Like SoulCycle and Tae Bo, Peloton has struggled to stay at the forefront of the fitness industry. Despite periods of incredibly high interest and high-profile users (like the Obamas), Peloton has lost many users since the pandemic ended—and has struggled to add more. (Some users may experience a paywall.)

The promises and perils of using at-home genetic tests for your health

A primer on genetic testing, personalized medicine, and the promise of pharmacogenomics–the use of genetics to predict an individual's response to a drug.

Harvard and MIT researchers are developing life-saving tattoos

Tattoos aren’t just a fashion statement. Scientists are trying to find life-saving applications for them. Harvard and MIT researchers are developing tattoo inks that react to body chemicals, alerting diabetics to blood sugar fluctuations or athletes to dehydration. Someday, patients may observe their body chemistry with tattoos that change colors.

The virtual reality era has finally arrived

The smartphone era has driven a large share of the consumer electronics market for almost 20 years now. But what comes next? Dominant computing platforms come and go over time, and there’s reason to believe that mixed reality devices like headsets and glasses might be the form factor that eventually replaces smartphones. This article presents a snapshot of where we are right now in the VR era, and what the future holds.

Small ways to improve your health today: an animated guide

What are some ways that you could start making a positive impact on your health today? This animated gallery overviews several health topics, including sleep and hydration, and offers ways to improve that aspect of your life. Clicking on the...

Why yoga teachers are dissecting cadavers

Thousands of fitness professionals are choosing to attend cadaver workshops to improve their understanding of anatomy and their teaching abilities. Though 3D virtual models give students a fresh way to explore the human body, medical students say experiencing the intricacies in person is far more instructive. As fitness professionals increase their understanding of the muscular and skeletal systems, their movement cues and instructions evolve in tandem.

Fantasy sports can have adverse health effects

Experts warn that fantasy sports, including fantasy football, can encourage obsessive use because they offer hits of dopamine. Daily fantasy games, which function more like gambling, are especially problematic.

Deepfake videos impersonating real doctors are spreading false medical advice

More than 100 videos, found primarily on Instagram and TikTok in August 2025, promoted products related to beauty, wellness and weight loss. While TikTok removed 94% of content violating its policies on AI-generated content, these deepfakes were watched and shared before removal, undermining public trust in medicine.

A comic book-style review of attending a biohacking conference

When Andrew Greenstone attended a biohacking conference in Austin, Texas, he didn't expect to walk away a newly implanted member of the techy cadre. Partway through the event, he paid $150 to have an NFC chip inserted into his right hand.

Watch these Canadian doctors critique medical accuracy on television shows

Drs. Paul Zalzal and Brad Weening are orthopedic surgeons and members of the Royal College of Physicians and Surgeons of Canada. In this episode, they discuss which television shows they think are the most medically accurate. "Grey's Anatomy" did not fare well in their review.

The WHO’s guidance on 5G, radiation, and health

5G is the latest wireless mobile phone technology, first widely deployed in 2019. 5G is expected to increase performance and a wide range of new applications, including strengthening e-Health (telemedicine, remote surveillance, and telesurgery).

The potential for weight loss drugs to transform the economy

In 2023, Americans spent more than $50B on weight loss drugs, a number expected to triple by the end of the decade. However, because of the wide range of obesity-linked health issues, widespread adoption of the treatments could transform the wider economy.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

Hospitals have been adding weapon detection systems to emergency rooms in response to violence

Healthcare workers are five times more likely to experience violence at work than employees in other industries, according to pre-pandemic federal data. Yet, despite growing awareness of these threats, fewer than one in three hospitals have installed metal detectors.

Scientists seeking gut insights are attaching flatulence sensors to volunteers' underwear

This fart-tracking device detects gas generated in the gut, providing insights about gut microbial activity. The underwear sensors measure a component of what is technically called flatus—digestive system gas.

Explore a list of surprisingly FSA-eligible wellness products

Flexible spending accounts can be used to cover medical expenses, but those funds can also be used to purchase wellness items or services, like bandages or contact solution. The general guidance for what's FSA eligible is any expense that is designed to diagnose, cure, mitigate, or treat a medical condition. HSA funds can often be used to cover the same expenses. (Some users may experience a paywall.)

Critics choose the 2025 ‘Worst in Show’ awards for CES products

Under the motto “Not all innovation is good innovation,” The Repair Association has selected products at CES that are the least private, sustainable, or repairable for consumers—as well as the “Who asked for this?” award. For example, the least repairable award went to the $2,200 Ultrahuman Rare Luxury Smart ring, which can only be charged 500 times—and replacing the battery effectively destroys it.

Find out what happens when nurses are hired like Ubers

Gig work has entered the healthcare realm. Nurses can now drop into shifts at medical facilities with the same ease as a ride-share driver accepting a rider.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

See images of medical cases of firework injuries shared on this 'Instagram for doctors.' (Warning: Graphic content)

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

Watch how algorithms can be designed to train themselves and self-improve without human input, to the point where the optimized code is too complex for programmers to understand.

Listen to an in-depth conversation on the links between Parkinson's disease and herbicide exposure and the challenging pace of scientific investigation.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

Watch the cumbersome, but necessary, precautions healthcare workers must take to care for and protect themselves while caring for Ebola patients.

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

A century of Billboard issues documenting the evolution of popular music.

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

Tattoos remain visible on your skin thanks to immune cells called macrophages

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

Use this calculator to find the dollar value of your mental load, from meal planning to coordinating after-school care for your children.

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

How fusion—which releases energy when two lighter atoms combine to form a heavier atom—differs from fission

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.