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FranExposure to cold temperatures can weaken the immune system, making it easier for viruses like the common cold to take hold and cause infection. When the body is cold, the immune response may be compromised, making it harder to fight off viruses. Additionally, cold air dries out the nasal passages, making them more susceptible to viral entry and replication.
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Why haven't humans evolved a resistance to the common cold?
The common cold is caused by many different viruses that mutate rapidly, making it challenging for humans to develop a specific resistance. Additionally, the symptoms of the common cold are not severe enough to exert strong evolutionary pressure for resistance to develop.
Why is it easier to shock people in cold weather?
Cold weather causes the air to be less humid, increasing its ability to conduct electricity. This, combined with lower temperatures causing people's skin to have lower resistance, makes it easier to shock people in cold weather.
When you catch a cold it is most likely you contracted it from what?
Colds are typically caused by viruses, with the rhinovirus being the most common culprit. These viruses are usually spread through respiratory droplets when an infected person coughs or sneezes, or by touching surfaces contaminated with the virus.
How do you pass a cold on?
You can pass a cold through respiratory droplets when an infected person talks, coughs, or sneezes, spreading the virus to others who breathe in the droplets. The virus can also spread by touching surfaces contaminated with the virus and then touching your face.
Is a cold sore caused by a bacteria?
A cold sore is caused by a virus.
