“Replaceable You”: A GizmoMD Book Interview with Author Mary Roach
“We can rebuild him. We have the technology. We can make him better than he was. Better . . . stronger . . . faster.” These iconic words were part of the opening lines of the hit TV series, The Six-Million Dollar Man,…
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AI-Powered Radar System Monitors Subtle Health Changes Without Wearables
Researchers at the University of Waterloo have developed a contactless radar system that uses artificial intelligence to monitor subtle changes in a person’s health. Unlike wearable devices that require physical contact or regular charging, this system operates remotely by analyzing how radio waves bounce off the human body. It can detect small shifts in movement, breathing, and other physiological signals, offering a noninvasive way to track health over time. The radar system works by sending low-power radio signals toward a person and interpreting the reflections using machine learning algorithms. These reflections contain detailed information about body motion, including patterns that…
New Neural Probe Captures Brain Activity During Behavior
Understanding how the brain works during real-life behavior has long been a challenge for neuroscientists. Researchers at the University of Washington have developed a powerful new neural probe that records activity across multiple brain regions while animals are freely moving. This tool allows scientists to observe how different circuits interact during tasks like decision-making, movement, and social interaction. The probe is made from ultra-thin, flexible materials that minimize damage to brain tissue and allow for long-term recordings. It contains hundreds of electrodes arranged to capture signals from deep and surface-level structures simultaneously. In tests with mice, the device recorded detailed…
Ultrasound Holograms Offer New Way to Influence Brain Activity
A team of researchers at ETH Zurich has developed a novel technique that uses ultrasound holograms to influence brain networks with high precision. This approach could open new possibilities for treating neurological disorders and studying brain function without invasive procedures. Unlike traditional ultrasound methods that focus energy on a single point, the ETH system creates complex three-dimensional pressure patterns that can target multiple brain regions simultaneously. The technique works by generating holographic ultrasound fields using a specially designed transducer array. These fields can be shaped to match the geometry of specific brain networks, allowing researchers to stimulate or modulate activity…
Wearable Patch Reduces Cravings for Alcohol and Drugs
Managing addiction often requires a combination of therapy, medication, and lifestyle changes. Scientists at Mass General Brigham have developed a wearable patch that could offer a new tool in this effort by reducing cravings for alcohol and drugs through gentle electrical stimulation. The patch is designed to be worn on the upper arm and delivers low-level pulses that influence brain activity linked to reward and impulse control. In a recent clinical study, participants who wore the patch reported fewer cravings and a reduced desire to consume substances. The device works by targeting peripheral nerves that communicate with brain regions involved…
Skin Sensor Technology Could Transform Eczema and Psoriasis Care
Skin conditions like eczema and psoriasis affect millions of people and can be difficult to manage due to their unpredictable flare-ups. Researchers at Heriot-Watt University have developed a new skin-sensing technology that could change how these conditions are monitored and treated. The system uses a flexible, wearable sensor to track changes in skin hydration, inflammation, and barrier function in real time. The sensor is designed to be comfortable and unobtrusive, adhering to the skin without causing irritation. It collects data continuously and transmits it to a mobile device, allowing users and clinicians to monitor skin health throughout the day. This…
Detecting the Flu with a Tongue Sensor
Imagine diagnosing the flu with a simple tongue test. Researchers have developed a prototype sensor that could one day make this possible by detecting viral proteins directly from saliva. The device uses a small, flexible strip coated with antibodies that bind to influenza A proteins. When the strip is placed on the tongue, it captures viral markers and produces a measurable electrical signal, indicating the presence of infection. The sensor is based on electrochemical detection, a technique that converts biological interactions into readable data. In lab tests, the device successfully identified influenza A proteins in saliva samples within minutes. Its…
Algorithmic Advances: A Monthly Recap of AI in Healthcare (September 2025)
Artificial intelligence may not be a classic “gizmo,” but it’s become an undeniable, rapidly evolving force in healthcare. From streamlining clinical workflows to flagging anomalies in imaging, algorithms are working their way into nearly every corner of medicine. The jury’s still out on just how useful, safe, or transformative these tools will ultimately be. But there’s no shortage of momentum—or headlines. So here’s a curated look at some of the most noteworthy AI-in-medicine developments from the past month. Predictive Health & Risk Forecasting An AI Tool Is Trying to Predict Your Risk of Getting Many Diseases Years in Advance –…
Glasses Track Your Health Through Your Blinks
Researchers at the University of Pennsylvania have developed a new wearable device called BlinkWise that transforms ordinary eyeglasses into smart health monitors by analyzing how people blink. Instead of relying on cameras or invasive sensors, BlinkWise uses low-power radio waves and artificial intelligence to track eyelid movements with millisecond-level precision. This allows the system to detect subtle changes in blink patterns that reflect a person’s physical and mental state. Blinking happens more than 10,000 times a day, and each blink carries information about fatigue, focus, eye dryness, and cognitive load. BlinkWise captures these dynamics by measuring blink duration, completeness, and…
New Fiber-Optic Technique Tracks Alzheimer’s Plaques in Moving Mice
Studying Alzheimer’s disease in living, active animals has long been a challenge due to limitations in imaging technology. Researchers at the University of Strathclyde and the Italian Institute of Technology have now developed a fiber-optic method that allows scientists to track amyloid-beta plaques in the brains of freely moving mice. This breakthrough offers a more realistic view of how the disease progresses and how plaques behave in natural conditions, rather than under anesthesia or in restrained environments. The technique uses a specialized fiber-optic probe that emits and collects light to detect fluorescent markers bound to amyloid-beta plaques. These markers glow…
Researchers Develop “CiliaBot” to Study Microscopic Motion
Tiny hair-like structures called cilia play a critical role in how fluids move across surfaces in the human body, from clearing mucus in the lungs to circulating cerebrospinal fluid in the brain. Understanding how cilia work has been difficult due to their microscopic size and complex behavior. Researchers at Carnegie Mellon University have developed a new robotic platform called CiliaBot that mimics the motion of cilia, allowing scientists to study their dynamics in greater detail. CiliaBot is a modular system made up of flexible, motorized filaments that can be programmed to move in coordinated patterns. These artificial cilia are designed…
