We often think that cold weather can cause more illnesses.

Research suggests staying indoors more is the main reason, and while that is partly true, new studies show that there is a possible correlation between cold temperatures and your body's immune response.

The nose is usually where viruses first enter the body through breathing or physical touch, such as rubbing your nose. So, it’s also where the first line of defense takes place.

A study done at Northeastern University states the nose responds to pathogens by releasing extra-cellular vesicles (EVs) into the mucus where they attack the intruder.

The same study explains how cold weather can impair your body’s ability to attack these viruses.

When the cold temperatures cool down your nasal tissue, it decreases the number of EVs your body releases to help fight off the virus by nearly 40%.

The colder temperatures can also change the EVs composition, making them less effective.

There are a few things you can do to stay healthy through the colder months.

• Frequently wash your hands
• Wipe down surfaces you use with sanitizing cleaner
• Avoid touching your face
• Stay hydrated and get plenty of sleep

You should also get the flu shot every year. Doctors update the vaccine every year to help protect against new strains of the virus.

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