According to reports from The Verge, a new smartphone accessory has been developed that could allow users to measure their blood pressure without the need for an inflatable cuff around the arm. While this innovation is promising, it's still too early to determine whether the technology will be reliable enough for real-world use. If proven accurate, however, it could make a significant difference, especially in developing countries where access to traditional blood pressure monitoring is limited.
The device, outlined in a study published in the *Journal of Scientific Translational Medicine*, consists of a 3D-printed case that attaches to the back of a smartphone. When a user presses a sensor with their finger, the app calculates blood pressure. However, some experts remain cautious, noting that the device was tested on only a small group of people and its accuracy has not yet been fully confirmed.
High blood pressure is a major risk factor for stroke, heart disease, and kidney failure. Yet, measuring it often involves cumbersome equipment and professional assistance. This has led scientists to explore more convenient, portable solutions that can be used multiple times a day.
Edgar Raymond, a hypertension expert at Johns Hopkins University School of Medicine, said, “At first glance, this seems like a great idea, and many people would love to have such a tool. But the main challenge remains accuracy.â€
Timothy Plante, an assistant professor at the University of Vermont’s Larner School of Medicine, agrees. He believes that using a smartphone to monitor blood pressure could revolutionize how people track their health. However, he emphasizes that the device is still in early stages. “We need more testing on a larger group of patients before we can say it’s reliable,†he said. “Otherwise, we won’t know if it works well in everyday use.â€
So far, the device has been tested on 30 individuals, and 90% were able to use it correctly after just one or two attempts. Most participants had normal blood pressure, so further studies are needed. Researchers suggest that at least 85 people with varying blood pressure levels should be tested before the device can be considered for commercial release.
If the technology proves effective, it could empower individuals to monitor their own health more easily and decide whether they need medical intervention. Studies show that only about 45% of people with high blood pressure in developing countries are aware of their condition. “If they know, they can take steps in their daily lives to lower their risk of stroke and heart attack,†researchers noted.
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