jdreyer wrote on Nov 28, 2012, 03:05:

Beamer wrote on Nov 28, 2012, 00:12:
You're nuts. Walking is, technically, a completely green resource. We're doing it anyway, so why not get additional energy out of it? As for shirts that harness our heat? Bring it on. Again, we're creating that heat anyway, depending on where we live at least half the time without wanting it. Lower your AC bill AND charge your phone!

For non-phone devices already in you, such as a pacemaker, this is a no-brainer.

Exercise is necessary and important, but it's hardly green. It takes god-awful amounts of fossil fuels to produce modern food, which is then burned when we exercise. If you have a fairly efficient car it's almost the same amount of energy to drive it than to walk.

But I agree, as long as we're walking and creating body heat, we may as well harness that energy.