Why do we catch a cold when we are cold?

Why is it that we catch a cold when the weather is cold? Is this a myth or just coincidence?

The fact is the common cold does occur more often in winter or when we are cold for extended periods of time. But you may still be wondering is it because we stay indoors more and are exposed to the cold virus from other people or some other intrinsic reason?

The answer is the later.

There is a biological reason for us to catch a cold when we are in cold, hypothermia, for a long time. People suspect cold temperatures hinder our defense system. Our study that led to the development of AllerPops provides another layer of explanation to the underlying cause.

Do you want to become the few who know this God’s secret? You may read the article here, https://allerpops.com/oral-probiotic-deficiency-may-cause-common-allergies/.

Our immune system is like a car with an accelerator to speed it up and brakes to slow it down. Pathogens stimulate the immune system so it can protect us from diseases and probiotics (friendly bacteria) slow it down when there is no infection. Like the car, our immune system is designed to be parked most of the time by the brake — our probiotics.

The optimal growth temperature for the probiotics in the upper airway is between 85-98°F. Our normal body temperature is at the upper end of the optimal range. When we are in hypothermia, the temperature shifted to the middle of the range that may help the bacteria grow better and send too many pacifying signals the immune system. With an increase in signals from the probiotics, our immune system becomes jeopardized.

Without baseline protection, the virus that causes your cold has a better chance to multiply and cause trouble. This mechanism may contribute to other chronic airway infections such as chronic bronchitis.

When I was growing up in China we lived in a house with no heat, and both of my grandparents had severe chronic bronchitis all their lives, especially in winter. The condition was so severe that it eventually contributed to their deaths. My mom also suffered from chronic bronchitis up until she was fifty, and when we moved into a house in the city with heat the infection went away.

Her recovery seemed like a miracle, but it was simply the result of staying warm in the winter.

Therefore, one way to protect yourself from having cold is to keep yourself warm, especially avoiding breathing in cold air for a long time. Dry yourself completely after a shower before going out. Wear a scarf when staying outside for a long time.

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