As a flooring material, wood retains warmth from heating systems, both from HVAC systems and radiant heat systems, increasing the overall physical warmth of the room. (woodfloors.org)
In other words, those who pay more attention to how others express warmth may be attentive to warmth in general, including actual physical warmth. (scienceofrelationships.com)
In individual brains, then, the multichannel experience of being safe with another (initially, a mother) is forever fused with the experienced physical warmth that comes with being safe, fed and held. (scientificamerican.com)