Cold Weather & Colds: What's the Real Connection?

The common cold is caused by viruses, not by cold weather.

The rhinovirus, the most common cause of the common cold, thrives in cool, dry air.

Some reasons why people might be more likely to get sick during cold weather:

- People spend more time indoors in close contact with others, which makes it easier for viruses to spread.

- The dry air in winter can irritate the nose and throat, making it easier for viruses to enter the body.

- Cold weather can weaken the immune system, making it more susceptible to infection.

- People may also be less likely to exercise and get enough vitamin D during the winter, both of which can contribute to a weakened immune system.