Good post rocketman. That may be the answer. I can semi use vapor barrier clothes. It works for me as long as I adjust my insulation for changes in metabolism. I generally take a longish walk to go to the bathroom and then need to layer down until my metabolism returns to the resting state. In the morning when my body temperature normally starts to rise I need to layer down to avoid the clammy feeling.

It is amazing how we can train our bodies. I drink two glasses of water before I exercise in the morning. The other day I was going to go for a walk after a football game so I drank two glasses - the game went into overtime, but I started to sweat anyhow. Nice to confirm Pavlov.