When things get cold, they generally slow down. This is true for our bodies too, we slow down to the point where we freeze. It seems logical to assume that if our bodies slow down to the point of freezing stiff, our reaction times (reflexes) are likely effected with our bodies.

When you're out there in that cold, make sure you dress warm, let your car heat up first, and keep in mind someone else may not be doing these things. On top of the occasional ice, you may have a driver who's freezing cold with reaction times hindered by the cold to the point they hit their breaks after they hit you.

The point of this article is to explain and illustrate the likeliness that the reflex ability of the human species humans is affected by the temperature.

The effects of cold on a human body seems comparable to fatigue. Imagine the effect of driving fatigued and cold.