Specific Absorption Rate (SAR) is a measure of the rate at which energy is absorbed by the body when exposed to a radiofrequency (RF) electromagnetic field, often expressed in watts per kilogram (W/kg). Understanding SAR is crucial for assessing the safety of wireless neuroprosthetics, as it helps determine how much electromagnetic energy penetrates body tissues, influencing both device design and regulatory compliance to minimize potential health risks associated with long-term exposure.
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