Why Do We Get Colds When It's Cold?

The video debunks the myth that cold weather directly causes colds, explaining that viruses, not temperature, are responsible. It reviews scientific studies showing no direct link between feeling cold and getting sick. Hypotheses suggest cold weather might affect the respiratory system or activate dormant viruses, but evidence is lacking. Factors like dry air, low humidity, and indoor behavior increase illness risk. Preventive measures include hand washing and avoiding contact with infected individuals.

What is the primary cause of the common cold?

• Lack of sleep

• Wet hair

• Viruses

• Cold air

Which study found no direct link between feeling cold and catching a cold?

• A recent study on vitamin D

• A study from 2005

• A randomized controlled trial from 1958

• A paper published in 2016

What hypothesis suggests that cold weather might activate dormant viruses?

• Cold improves respiratory health

• Cold increases vitamin D levels

• Cold activates dormant viruses

• Cold weakens the immune system

How does low humidity in cold weather affect virus transmission?

• It increases the size of virus droplets

• It causes viruses to drop to the floor quickly

• It makes viruses less contagious

• It allows virus particles to float longer

What is a recommended method to prevent catching a cold?

• Taking vitamin C supplements

• Avoiding cold drinks

• Wearing extra layers

• Washing hands with soap