Why do people get cold in cold weather?  

There is a common belief that cold weather causes colds, but this is not entirely true. Cold weather does not directly cause colds, but it can weaken the body's immune system, making it more susceptible to infections such as the common cold.

During the winter months, people tend to spend more time indoors where they are in close proximity to others, increasing the risk of transmission of respiratory viruses such as the common cold. The cold, dry air can also irritate the respiratory system, making it more susceptible to infections.

Additionally, the winter season often coincides with the flu season, and the flu can lead to complications such as pneumonia, which can also cause cold-like symptoms.

Therefore, while cold weather itself does not directly cause colds, it can contribute to a person's increased risk of getting a cold or other respiratory illnesses.