The key word is 'some' cases. Where merely uncomfortable cold or heat or rain is the issue the body is better off for the stress of dealing with it with only appropriate clothing. Where situations are predominately extreme this would not be the case and special clothing costing a few hundred $ would have to be used. I imagine your winters are quite extreme.GinNB said:??? This I don't see. I've spent thousands of hours on open station tractors and over a thousand in a cab and for what I do a cab is MUCH healthier.