Wireless technologies such as Wi-Fi and Bluetooth have made remote connectivity easier, and as electronics become smaller and faster, the adoption of “wearables” has increased. From smart watches to implantables, such devices interact with the human body in ways that are very different from those of a computer. However, they both use the same protocols to transfer information, making them vulnerable to the same security risks. Thus, researchers consider using the human body itself to transfer and collect information. This area of research is known as human body communication (HBC). Now, scientists from Japan report HBC characteristics specific to impedance and electrodes, which they say “have the potential to improve the design and working of devices based on HBC.”
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Source: Phys.org