
Recently, we experienced a triple-digit heat wave in Iowa. It’s summer! So, this isn’t uncommon, but when you’re managing autoimmune disease, the hot weather just seems to feel… even hotter.
So, I had to do a little research.
Do the hot and humid days of summer actually affect people with autoimmune disease differently? For those who are new here, I’m Angela and I’m juggling rheumatoid arthritis, celiac disease, eczema, severe migraines and a few other chronic health issues. It can be a lot, but with mindful planning of my days, I’m a happy, healthy gal most of the time!
Disclosure: This blog is reader-supported, which means this post contains affiliate links and advertisements. I earn a small commission if you shop through them, which helps fund this website so I can continue to bring you amazing content. Thank you! ~Angela
So, Does Heat Affect Autoimmune Disease?
The Global Autoimmune Institute says that sunlight and heat can affect people with autoimmune disease differently. For some, the warm sunshine provides relief, while others have an aggravation of autoimmune symptoms when summer humidity and heat arrive.
For people who do notice a flare-up of symptoms, the Institute says inflammation may increase when exposed to ultraviolet light, high temperatures and high humidity.
Thankfully, the research shows that most weather-related symptoms subside after seeking relief from the summer triggers.
Here’s how Heat Affects Me Personally
As I get older, I’ve developed an intolerance to heat. Whether it’s the collection of autoimmune diseases, the onset of perimenopause or simply the aging process (or maybe a bit of all three), I’ll never know. But, I can be aware of the issues and work towards finding relief!
Here’s what I notice on hot, summer days when I’m outside.
I sweat more than those around me.
I’m thankful my system works as it should and sweats to help keep me cool (because some bodies don’t), but it sure adds to my laundry basket when I sweat through two or three outfits a day in the heat of summer!
My legs and arms feel sort of limp.
This symptom always scares me. I had an elevation in these symptoms when I had active Lyme disease (and my doctor thought it might be multiple sclerosis). However, now I notice the limpness primarily when I’m overly hot and exhausted from the summer heat.
I feel my energy drain faster than usual.
This is the hardest symptom to manage, by far. Folks with autoimmune disease already have lower energy levels than the general population. Then, add in a stifling hot summer day, and you can count on needing extra rest and a nap to make it through the day.
Sometimes I feel nauseous.
Lastly, the heat often suppresses my appetite and even make me feel a little sick to my stomach. I boost my water and electrolyte intake, which helps, but still. The darn heat makes my stomach feel off!
How to Stay Cool in Summer
It’s not easy, but when the temperature spikes, try changing up your routine.
During the hot weekend I mentioned earlier, my boyfriend and I found a new show on Amazon Prime Video to binge in the cool air conditioning. We really enjoyed the relaxation and trying a new show, as we usually aren’t big TV watchers together. Instead, we prefer to be outside making the yard pretty, exploring parks, visiting friends, walking my pup Archie or traveling.

You can also stay cool by doing activities in the shade or water. We love to swim, go tubing and visit local lakes. We apply sunscreen (I use this one from Aveeno) every hour, take water breaks in the shade and soak up the sun even on the hot days. For me, the key is to limit my time outside and take lots of breaks. Then, follow up the outside time with a cool bath and time in the air conditioning to let my body rest.
The Institute recommends these additional ways to stay cool:
- Wear lighter-weight, loose-fitting clothing made from breathable fabrics such as cotton or linen, as well as hats and sunglasses.
- Drink cool beverages and enjoy cooling treats such as ice pops.
- Try a lukewarm bath to cool the body down slowly. I like to add Dr. Teal’s epsom salts to my baths.
Do you or someone you know manage an autoimmune disease? How are they managing the summer heat? I’m always open to learning more ideas and tips from my online friends.
Until next time,
Choose healthy!
Angela
PS: Wonder what I’m up to this week? Visit me on Facebook at Cupcakes and Yoga Pants!

