Recent Blog Articles
Making holiday shopping decisions quicker and with less stress
Yoga for weight loss: Benefits beyond burning calories
Embryo donation: One possible path after IVF
How to stay strong and coordinated as you age
Acupuncture relieves prostatitis symptoms in study
Skin in the game: Two common skin problems and solutions for men
Anti-inflammatory food superstars for every season
Harvard Health Ad Watch: An upbeat ad for a psoriasis treatment
A new targeted treatment for early-stage breast cancer?
What is neurodiversity?
You don't say? Why does your nose run in cold weather?
- By Matthew Solan, Executive Editor, Harvard Men's Health Watch
Having the sniffles in winter does not automatically mean you’re sick. It’s often a sign your nose is doing its job. The nose heats up and moisturizes air before it enters the lungs. Bones in the nose are covered with blood-filled membranes. These membranes sit behind the nasal cavities, and the blood flow keeps the space warm.
When you breathe cold air, the nose membranes secrete water and mucus. It’s like a mini steam bath with moisture dripping down the walls. The colder and dryer the air, the more water and mucus is produced, which leads to more sniffles and extra tissues.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
You might also be interested in…
COVID-19, Flu, and Colds
Any given year, we’ll collectively come down with one billion colds and up to 45 million cases of flu, while the number of new cases of COVID-19 keeps rising. In this guide, you will learn how to avoid getting any of these three viral infections, and, if you do get sick, what you can do to feel better. You’ll also learn when your condition is serious enough to call a doctor. The report also provides specific information about high-risk groups for whom COVID and the flu can be very serious.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!