Assertion: human body's environment | /r/HasProperty | cold
Facets:
Source sentences:
text: If the environment is cold and body heat must be conserved, cutaneous blood vessels contract in quick, successive rhythms, allowing only a small amount of blood to flow through them.
text: In the wearable market, this means that we could harness our body's heat energy to provide unlimited power to certain small devices as long as the environment is cold enough.