Why do some people get sick when the temperature changes sharply?

Well, as the person who happened ... I really don't know, but I'll give you my best guess.

First of all, this happens almost always when the weather suddenly gets cold.

When the temperature changes rapidly, you usually don't wear clothes suitable for the new temperature. Maybe you didn't realize that the temperature had dropped by ten degrees when you came out. Maybe you sleep with the window open, because the temperature is comfortable and you don't need a blanket. Then, you fell asleep, the weather turned cold, and an airflow blew you all night. If it is cold when you sleep, you will close the window and use a warm blanket.

Yes, I realize that it's against science that cold weather won't make you sick. It must be contact with people with germs, dadada dadada. But as an introverted person, sudden cold will make you sick, and I will tell you that it can definitely happen without any interpersonal contact. My guess is that when you suddenly feel cold, the immune system will be hit, so all the bacteria that wander around us all day, we will usually successfully repel and shoot you.

All the guesses. But it will definitely happen. If the temperature drops, "night window" must be a sore throat for me.

The most accepted theory is that temperature will not affect our ability to catch more colds. Viruses cause colds, not cold weather.

However, what annoys me is that according to the latest research I have read everywhere in recent years, my mother may have a problem. I feel that although the virus is more popular in cold months, we spend more time together in those months; So, we got colds and viruses from this situation. Yes, but ... viruses spread by droplets in the air move more easily in dry and non-humid months. In addition, catching cold and lacking vitamin D will really reduce the efficiency of your immune system; Because of the cold environment in the nostril, blood vessels contract more at low temperature, and the mucous membrane that may be dry and broken in the nasal cavity will let the virus wander around and multiply. Vascular contraction also inhibits the flow of white blood cells to this area and gives the virus more opportunities to replicate. More research is needed in this area, but more and more evidence shows that cold weather is helpful to improve the possibility of illness, especially in winter when viruses are frequent.

Now I have to admit this to my mother.