Is it harder on your lungs to run in cold weather?
James Craig
Published Jan 19, 2026
He explained the problem with intense cold-weather exercise is that increasingly cold temperatures make it harder for the lungs to warm and humidify the air, which causes the lining of the airway to dry and, in some cases, become irreparably damaged.
Why do my lungs hurt when running in the cold?
The heat exchange happens so quickly that cold air never actually reaches your lungs. Dry air has to be humidified, so your nose and throat donate moisture, leaving them feeling scratchy and irritated (hence the burning). And this process happens in overdrive when you breathe faster and deeper while running.
Is it bad for you to run in the cold?
When you run outside in the low temperatures, you breathe in cold air, which can be dangerous for your lungs. Cold air is bad for your lungs because it's typically very dry, which can lead to coughing, shortness of breath, and more.
Why is it harder to run in the cold?
The colder it is outside, the harder your body has to work to keep your vital organs warm –and so the 'oxygen and blood tend to be shunted away from the extremities, which can make the muscles' ability to use the oxygen less efficient than in more moderate temperatures,' says Rebekah Mayer, National Run Program Manager ...
How do you protect your lungs from running in the cold?
How to breathe properly in the cold
- Use a bandana or a scarf. Cold air tends to irritate your bronchial tubes, lungs and mucous membranes. ...
- Inhale through your nose and exhale through your mouth. You can warm up the air you breathe in by inhaling through your nose. ...
- Avoid high intensities.
Does running in the cold strengthen your lungs?
While running in the cold can help your body get used to the colder climate, it won't get your lungs in shape any faster than general training will. If you're going to be running a race in colder temperatures, make sure you get outside to train a few times instead of consistently running indoors on a treadmill.
Can you strain your lungs from running?
When chest pain strikes during or immediately after exercise, the most common cause is a spasm of the lungs' small airways. Called exercise-induced bronchospasm (EIB), it can cause sharp chest pains and make breathing difficult.
How can I increase my lung capacity for running?
Here's how:
- Interval running. One of the most effective ways to build lung capacity is by working your body hard in short bursts followed by rest. ...
- Build endurance with the long, easy, slow run. This pushes you in a different way, combating fatigue by getting your muscles used to working longer.
Why do I struggle to breathe when running?
Why does it feel difficult? Strenuous activities such as running cause your muscles and respiratory system to work harder than normal. You require more oxygen and must remove carbon dioxide buildup, which can make breathing more difficult.
How long does it take for your lungs to get used to running?
It can take 4 to 6 weeks to notice changes in your aerobic ability and for the actual training effect being felt.
How can I raise my oxygen level quickly?
In the immediate short term:
- Stand or sit up straight. Rather than lying down, which may put pressure on your lungs and make it harder to breathe.
- Cough. If you have a cold or the flu, difficulty breathing can decrease oxygen saturation in your blood. ...
- Go outside. ...
- Drink lots of water. ...
- Take slow, deep breaths.
Why do my lungs hurt after running?
However, when you are outside working hard (e.g., running) and you are breathing a lot harder, those cells that line the trachea become severely dehydrated. Once dehydrated they become irritated, and you perceive this dehydration and irritation as "burning" in your throat and lungs.
Can your lungs feel sore from running?
Lactic acid. One of the most common forms of pain or discomfort we feel during strenuous exercise is a burning sensation in our lungs or muscles that goes away shortly after we cease the activity. This is caused by a build-up of lactic acid.
Can you get pneumonia from running in cold weather?
It might surprise you to find out that neither cold weather nor wet hair can cause you to catch pneumonia. In fact, pneumonia in itself isn't contagious, so you can't really “catch” it at all.
Does cold weather affect your breathing while running?
Inhalation of cold, dry air often irritates the airways. This can happen in individuals with healthy lungs, especially when the air is particularly cold and dry, and when the amount of air breathed in and out is increased while participating in exercise outdoors.
Can cold weather damage your lungs?
While inhaling cold air won't damage your lungs, it can irritate your airways and cause what is referred to as bronchospasm. When this happens you can experience a burning sensation in your airways, shortness of breath, chest tightness and cough.
Can you damage your lungs by running too hard?
Exercising in very cold weather could harm lungs over time, researcher cautions. High-intensity running or ski racing below -15 C can cause irreparable lung damage, says exercise physiologist who recommends three ways to prevent it.
Is it harder to run in the cold or heat?
Believe it or not, cold weather is actually an ideal condition for most runners according to Tom Holland, an exercise physiologist, sports performance coach, and author of The Marathon Method. "The colder the weather, the less heat stress on the body, which makes it significantly easier to run," Holland explains.
How do I stop my lungs from hurting when I run?
Wear a scarf, mask, or neck gaiter
In order to achieve that during the cold winter months, try wearing a scarf, mask, or neck gaiter on your next run. Covering your mouth (and/or your nose) will help heat and humidify the air you inhale, and in turn, you can lessen the strain on your lungs.
Is 92 oxygen level OK?
If you are using an at-home oximeter, you should contact your health care provider if your oxygen saturation level is 92 percent or lower. If it falls to 88 percent or lower, seek immediate medical attention.
When is oxygen level low in Covid?
Some COVID-19 patients may show no symptoms at all. You should start oxygen therapy on any COVID-19 patient with an oxygen saturation below 90 percent, even if they show no physical signs of a low oxygen level. If the patient has any warning signs of low oxygen levels, start oxygen therapy immediately.
Is 94 a good oxygen level?
An ideal oxygen level is between 96% and 99% and an ideal heart rate is between 50 and 90 beats per minute (bpm). The oxygen level may be lower in some people with lung conditions, even when they are feeling well.
Why do my lungs feel good after running?
Your lungs become more efficient at getting more oxygen to your muscles not only by better processing the amount you take in during each breath, but also by increasing your respiration rate – that's why you breathe quicker when you run.
Does running improve your lungs Reddit?
For all intents and purposes, you cannot increase lung capacity via training, nor can you improve the rate of gas exchange between the lungs and bloodstream. What is actually happening is you're limited by oxygen consumption, which is limited by stroke volume.
Does running expand lung capacity?
In general regular exercise does not substantially change measures of pulmonary function such as total lung capacity, the volume of air in the lungs after taking the largest breath possible (TLC), and forced vital capacity, the amount of air able to be blown out after taking the largest breath possible (FVC).