Self-healing and eco-friendly devices that generate electricity from body heat could power wearable gadgets, such as a heart monitor for runners
Source:
https://www.newscientist.com/article/2267575-stretchy-bands-generate-electricity-from-body-heat-to-power-gadgets/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home