Interference with activities, performance and productivity
There is no doubt that hot, moderate or cold environments can interfere with human activities, affect task performance, and influence productivity. The most obvious of these effects are those of distraction and on the ability to carry out tasks involving manual dexterity in the cold. What is not clear, despite numerous studies, are details of the mechanisms involved and hence a comprehensive underlying model which relates cause, human thermal environment (i.e. in terms of the six basic parameters) to effects on activity, performance, or productivity.