Hydration in Focus: From World Cup Breaks to Health Concerns
The 2026 World Cup has introduced mandatory hydration breaks in every match, sparking debate among fans and pundits. While some view these breaks as disruptive or commercially driven, they highlight a growing global emphasis on hydration. Experts like Andreas Flouris from the University of Thessaly note a significant increase in scientific attention toward hydration, partly fueled by intensifying heatwaves and public health campaigns encouraging greater fluid intake.
The Emergence of Hydration Gadgets
Against this backdrop, the market has seen an influx of hydration-focused technologies. Studies indicate that insufficient hydration is a widespread issue; for instance, a 2023 UK study found one in four adults aged 65 or older were dehydrated, and a 2018 study by Flouris and colleagues revealed 70% of 139 European workers were dehydrated to a degree that could impair cognitive and motor functions.
Companies like Epicore Biosystems are developing devices to address this. Roozbeh Ghaffari, co-founder and CEO, describes sweat analysis as the “next chapter” in personal health tracking, following the popularity of step-counting gadgets. Epicore Biosystems offers single-use patches and wearable sleeves that monitor sweat flow rate, sodium content, and skin temperature. A new armband and app aim to assess “hydration readiness” using real-time sweat data, with some devices even vibrating to prompt fluid intake. These technologies are marketed to athletes and workers in high-temperature, physically demanding environments.
Accuracy and Effectiveness: A Scientific Perspective
Despite the innovation, the accuracy of some sweat-sensing devices faces scrutiny. Andreas Flouris, whose lab evaluates such technologies, expresses skepticism, stating that “Most of these products that we've tested do not show the level of accuracy that you would expect,” especially during varied and intermittent physical activity. Ghaffari, however, points to peer-reviewed publications supporting the accuracy of Epicore Biosystems' devices, particularly for workouts lasting 30 minutes or longer.
Smart Bottles and Toilet-Based Analysis
Beyond sweat sensors, smart water bottles represent another popular segment of hydration tech. WaterH, for example, offers bottles with glowing rings that blink to remind users to drink. Cem Bakiş, head of business development at WaterH, emphasizes the gamified aspects, such as adding friends and earning points. While some smart bottles estimate liquid consumption by weight, WaterH uses sensors to detect tipping angles and fluid flow rates. Bakiş acknowledges some online criticisms regarding accuracy but attributes these to calibration issues.
For those seeking a less conventional approach, Vivoo provides a urine-analysing device that attaches to a toilet bowl. This gadget uses optical sensors to measure “urine specific gravity,” an indicator of dehydration based on urine density. While Vivoo states its products are not for medical diagnosis, urine-based measurements are used in scientific hydration studies. Flouris notes a potential delay between the onset of dehydration and its detection in urine.
The Psychological Impact of Constant Monitoring
Tamara Hew-Butler from Wayne State University acknowledges the interesting nature of hydration-monitoring gadgets but raises concerns about potential anxiety. She questions whether an abundance of metrics and reminders might add an “emotional burden” rather than universally benefit users. Bakiş counters that WaterH aims to help users “build a habit,” while Vivoo emphasizes its passive, routine-based testing to mitigate anxiety.
Hew-Butler suggests that hydration tech could be particularly useful in specific scenarios, such as alerting coaches to dehydrated team members who might otherwise hesitate to speak up. She concludes that while technology offers immediate results, the human body possesses a considerable range of adaptability regarding hydration.
Source: Do you know your 'sweat score'? The rise of hydration tech