Over 50 years ago, an experiment should prove that colds have something to do with cold and freezing. It failed. A low ambient and outdoor temperature does not automatically lead to a cold or an infection. Otherwise we would all be sick all the time during a cold winter.
Pathogens not cold is the cause
Another fact speaks against the connection between cold and cold. Most pathogens are quite sensitive to cold - in the Arctic or Antarctic, it is much less common for colds than temperate. A cold requires a pathogen and not just cold temperatures.
Weakened immune system
However, colds do occur more often in the cold season than in summer. Why is that?
Viruses can spread very quickly under winter conditions for the following reasons:
- The accumulation of colds in winter is on the increased germ count attributed in the rooms.
- In addition, we spend most of our time in poorly ventilated, heated rooms. The Mucous membranes dry out, Pathogens have such an easier game.
- If germs are already present in the body, illnesses are more likely to occur at low outside temperatures than in summer. Because by cold weather is the Immune defenses of the body slightly lowered so that diseases can be triggered more easily by existing pathogens.
Why are we shivering from a cold?
The sensation of a hypothermia typically arises just before the development of Fever, which precedes the other disease symptoms. When people shiver, they like to take a cold back to the cold. However, it is just the other way around: a person who has caught a cold starts to freeze - so this is the result and not the cause of the disease.