The FDA has approved a new generation of “smart tattoos” capable of monitoring health metrics such as blood sugar, hydration, and heart rate. Using specialized bio-inks, these tattoos change color in response to the body’s physiological signals, offering a non-invasive alternative to wearable devices. Doctors and athletes are excited about the potential applications, particularly for patients with chronic conditions and for elite sports monitoring. Early adopters report the tattoos are both functional and aesthetically striking, merging science and artistry.
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