The solution is living inside your body, rather than inside your beliefs about what's expected of you.

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Again, this mimics a singly-capable Tricorder device where hand-held electronics receive wireless signals about the temperature inside your body.

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These implantable sensors have this in common: they self-contain what is needed to transmit information from inside your body without batteries and without wires.

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Unsurprisingly, the primary application is to handle tasks inside your body, such as deploying it via a "minimally-invasive catheter procedure" rather than implanting it through surgery.

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Inside, keep your body off the ice or ground (the Inuit put their sleeping blankets on top of a bed of sticks and reeds) and create heat-trapping "loft" (it's what keeps you warm in a sleeping bag) by layering a few small blankets or big trash bags, with leaves or crumpled newspapers in between.

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Heat your body from inside.

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Research is being done on biomonitoring implants that will keep track of how your body is doing from the inside.

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