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Dave-OH
Administrator
    
USA
4073 Posts |
Posted - Aug 18 2007 : 12:12:28 PM
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An active thread on the COPD list this week was "Trouble Breathing In Hot Weather." Folks from across the nation and even a few international members shared their personal knowledge/problems. I've culled a few responses and did a bit of research to hopefully gain perspective and perhaps even a bit of relief.
FIRST, THE EXPERTS TELL US WHY WE HAVE TROUBLE Weather and Breathing Changes in temperature seem to affect the level of dyspnea (the sensation of shortness of breath). How could temperature have an effect? Extreme hot or cold conditions stress the entire body. In an effort to maintain a constant body temperature (98.6 degrees Fahrenheit), you expend additional energy to warm or cool your body. This additional energy requirement also increases the amount of oxygen your body is using. Breathing hot or cold air can also have a drying or irritating effect on the airway causing bronchospasm. Bronchospasm decreases the size of the airway.
Humidity High humidity is also a cause of increased complaints of shortness of breath. There are a couple of possible explanations for this phenomenon. First, as humidity increases, the density of the air increases. More dense air creates more resistance to airflow in the airway resulting in an increased work of breathing. Another possible explanation is that as humidity increases, the prevalence of many known airborne allergens increases. Dust mites and molds both increase in high humidity.
Barometric Pressure and Elevation As barometric pressure drops, less oxygen is available in the air. This is the same principle that causes a decrease in oxygen level as you travel to higher elevations. The total pressure is less and so the oxygen component is less. http://www.rotech.com/respiratory/forms_docs/BEWeather.pdf
Chronic bronchitis and emphysema are common types of COPD. Such respiratory ailments often are aggravated in hot weather because of an increased amount of particulate matter, a microscopic form of air pollution. http://www.recordpub.com/news/article/2377811
MEMBER'S SUGGESTIONS The original post from Carolyn/MO: I was wondering if any of you are having more of a problem breathing in hot weather compared to cooler weather. I live in Missouri and this week the temps on some days have reached a high of 103 degrees with no end in sight for several more days. Even though I have my air conditioning on full force, my breathing is more labored. I also have allergies and maybe this is a contributing factor. Does anyone else have problems with breathing in hot, hot weather?
Sue/NC: I think the single best thing I have done is to get a dehumidifier for my home. When I was in rehab I ask about the bet humidity for us in the summer as I could always tell such a big difference in my breathing there (it was much better) I was told between 38% and 42% was the optimum.I got it last summer and have gotten 2 gallons a day out of my house and one week when it was so bad I got 4 gallons a day out.(I have to empty it)...I have now been one year with only one exacerbation.This also has surprised me as I only keep my A/C on 74 at the lowest.Previous years I have had to keep it on temp anywhere from 68-72.I realize we each have our own 'comfort level' but this has sure been a wonderful bonus for me.
Elisabeth/MS: I live in Mississippi and with the high temperatures and the humidity it is almost unbearable. Like you, until recently my Air conditioners were great but since the really hot temps...(it) seems not to cool as well as it did. I have found that if I put a fan in my face and sit still I can handle it. Not much of a life though. It seems that this has got to be the hottest temperatures we have ever endured or my COPD is just not comfortable with it.
Maggi/IL: Like so many of you, I'm suffering through this summer's weather......and I'm one of those people who first thing in the morning pop on the weather channel...and get a pretty good idea of what the day's going to be like breathing-wise once I see the humidity. But, whoa! This summer, I noticed that what's really making me crazy isn't completely to blame on humidity but the "dew point" has been going berserk. I'm not totally understanding the difference between humidity and dew point since they both relate to water content in air thereby making the air "heavier" (less oxygenated) for us to breathe but I found information on the Internet that totally corresponds to how easy - or not - it is for me to breathe daily - or not. (Source: Mark Margarit of WHDH-TV Boston Channel 7 Weather).
Humans tend to react with discomfort to high dew points. Those accustomed to continental climates often begin to feel uncomfortable when the dew point reaches between 15 and 20 °C (59 to 68 °F). Most inhabitants of these areas will consider dew points above 21 °C (70 °F) to be oppressive.
Dew Points 20+C (68F) Oppressive 18C (64F) Sticky 16C (61F) Humid 13C (55F) Comfortable 10C (50F) Refreshing
The past ten days in the Chicagoland area the dew point has not been below 68F.....and while the humidity's been ranging from 54-100% and the temps have been down to perhaps 75F a couple nights.....what's done me in are the extremely "oppressive" dew points whenever I'm out of the air conditioning. Even with the a/c on in my apartment, I'm a bit more sluggish than usual -- and I'm blaming dew point; that's my story and I'm stickin' to it <g>.
Tony/TX: I have trouble with either extreme. Either hot or cold.It was 104° in Dallas today and I was only out this morning around 10 a.m. and it was already hot enough to cause a lot of difficulty in breathing. If I run the AC and point a vent straight at my face it helps a lot. I know of one quick solution to being hot and SOB that I heard a few years back before I had my transplant and that was to put your face in your freezer on your refrigerator and take a few breaths. I have done this and it really worked for me. It was strangely easy to breathe that very cold air.
Mimi: ...someone posted that breathing the air in your freezer would help you to get more air into your lungs. Well, I'm one of those that will try anything. I live in a three story home, so stairs are a part of my daily life. Generally when I come up here to mess around with the computer, I arrive in my office really, really out of breath. This morning (as an inquiring mind) I opened my freezer and took a bunch of good, deep whiffs (good thing it was clean!), then I walked the same stairs that usually render me breathless. Well, I'm here to tell you that it works! I got to the top and I was amazed that I wasn't puffing like a steam engine. Now, why would this work? My guess is that hot things expand and cold things shrink. So, if you get that cold air into your lungs it is going to shrink (temporarily) your inflammation. Anyway, that's my take on it. All I know is that if I come in from gardening out of breath I'm heading for my freezer and not a rescue inhaler. Also, when I know I'm coming up here, you know where you'll find my head (little wink). I just hope my kids don't pop by for a surprise visit when I'm taking a nap in the Frigidaire, LOL!
Steve: It seems to be the weather changes....which is related to barometric pressure...A day or two into the new change I do better.
Don/SD: I have the same problem and in fact am having to struggle today and it's no fun. Setting in front of fan not much help, A/C helps . Got the dehumidifier going also and don't notice much difference. I don't know about you guys but the old chest gets sore from the struggle all day and most of the night. Is it the weather or maybe my COPD is getting worse. Only time will tell I guess.
~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~< SOURCES: News items summarized in The COPD-NEWS are taken from secondary sources believed to be reliable. However, the COPD Family of Services does not verify their accuracy. ~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<>~<
FROM AN ASTHMA HOT LINE Anon/LA:... humidity's been killing me. But you know what I do and it really seems to help. I have a fan going 24/7. Not sure if it's just in my mind but it helps me breath. shrug. I even have a fan going in the winter. I have a real aversion to not having a fan going all the time.
Sam04: I find also the best bet is a fan or A/C...if you need to be upright at night, check with medical supply company. There is a special form that you put under your pillow or mattress and it will keep your head raised. I've had one now for 4 months and find that it helps a lot at night (stopped me from sleeping in a chair).
Anon: Humidity is the worst. I was using my inhalers at least 10 times a day for asthma attacks for a few of those really humid days. You should carry a paper fan, like one of those compact kind that wraps into a small rectangle or something. Recently, fanning myself with a brochure helped me when I got into a little lift car that was poorly ventilated and there was not enough air flow.
Buzz: Yeppers, Hot weather is hard on me too. I have to sleep with the ceiling fan all the time. Even in the winter. The air has to be moving. My eyes sure pay for it. Now I sleep with a sock filled with rice over my eyes to keep them from drying out. And for an added touch at times I warm the sock in the microwave for 30 seconds. Oh heaven...that is on the eyes. At least something can feel good when I have a hard time breathing. A/C is my friend. I managed to get hold of a couple of old ones that friends were throwing away. I only use them when I am in the room, have to save money. I don't need them to cool the place just to breath. |
Dave, Forum Administrator COPD Support, Inc. http://www.copd-support.com/ Your source for peer support and COPD Info
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mable
Rookie
USA
2 Posts |
Posted - Oct 11 2007 : 4:13:35 PM
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what about us that have a hard time in Michigan's winter??? any suggestions?? everyone in this article seems to do better in the cold, I don't do well in humidity either, but these winters are worse for me and of course I susposedly in the end stage of copd but not enough to qualify for a lung transplant yet, I go back to U of M in nov, but like everyone else with this disease each time I get sick it takes forever to recoop, |
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Carolyn-Mi
Administrator
  
607 Posts |
Posted - Oct 11 2007 : 6:30:40 PM
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I have trouble here in Mich in the extreme cold if it gets much below 20 degrees. I am fine inside but what I have found if I have to go out is to try to have car warmed ahead of time, wrap a light scarf losely around your mouth and nose so that the air warms a bit before breathing it. It isn't much but it is better then nothing. I have tried the masks in winter and I just don't do well with a mask unless it is absolutely necessary.
With this up and down weather we have been having it is the pits! But I am not willing to move somewhere else at this stage in my life. I hope the winter isn't too hard on us this year! |
COPD Support http://www.copd-support.com |
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Vic
Member

USA
60 Posts |
Posted - Oct 13 2007 : 10:32:22 AM
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When the temperature drops, the air being a gas, contracts. After contracting there are more molecules of O2 in a liter of colder air (along with more of all the other gasses).
Our lung capacity remains the same, so we are getting more O2 in the same liter of cold air than in a liter warm air. I find that when I walk the aisles in the Supermarket, as soon as I get in the open-freezer aisles, I can breathe measurably better...that's the air holding more O2.
Of course, when the temperature fall is too great, the nose and sinus cavities can no longer warm the air sufficiently to prevent our airways from constricting, so we then get less air intake. Mouth-breathing will cause the cold air to reach our lungs almost unchanged and have a greater chance of constricting. -- Vic |
Vic / Long Island |
Edited by - Vic on Oct 14 2007 11:16:51 AM |
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