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Autumn & Dampness: Why the season can make you feel a little meh

  • Writer: Samantha McNamara
    Samantha McNamara
  • Oct 23, 2025
  • 5 min read

As the leaves turn golden, fall to the ground and begin their slow decomposition (yes, that steaming-compost-pile you may not have thought about) the air around you subtly changes. Consider this, when leaves rot, they release gases and volatile compounds, fungi and mold spores float in the air and suddenly your sinuses get a little tickly, your nose a little runny, you’re a bit more puffed out than usual.


The rotting leaf phenomenon is more than just poetic, it’s a micro-ecosystem releasing moisture, bio-organic material, spores, humidity and “damp” air. That’s when you might notice:


  • morning stuffiness (you wake up blocked)

  • post-nasal drip (that slimy throat tickle)

  • phlegm in the throat, snoring or mouth breathing at night

  • daytime fogginess, fatigue settling into your limbs (“legs feel heavy by mid afternoon”)

  • bloating, gut-unease, mucus in bowel movements (yes, really)

  • a flare of Sinusitis or chronic fatigue for the less-fortunate.


Why does autumn hit some more than others? Because some of us are more “damp” than others and I’m not just talking metaphors. In the language of classical systems (think Traditional Chinese Medicine, TCM) the concept of dampness has been around for 2,000 years. But modern science is catching up: what the ancients called “dampness” can correlate with mucus-rich layers, biofilms and immune-system challenges.


What are biofilms, and how do they link to “dampness”?


Any of you that know me personally understand I’m a total nerd so, let’s nerd out for a moment, A biofilm is a community of microbes (bacteria, fungi, sometimes parasites) that adhere to a surface and secrete a matrix of sticky polymers (polysaccharides, DNA, proteins, lipids) that protect them and allow them to persist.

In your lungs, nasal passages or gut (especially the large intestine) this means microbes can hide behind a mucus-rich barrier or “sticky layer” (that’s your “dampness”), forming low-grade biofilms that stimulate your immune system without you noticing full-blown infection. For example:


  • In the gut: “Intestinal bacterial biofilms modulate mucosal immune responses in the GI tract.”

  • In mucus layers: “Why mucus and phlegm matter in health and disease… thicker mucus = easier for bacteria to move in groups (biofilms)”.


So when you wake up feeling blocked, fuzzy, heavy legged, bloated, it may not just be a bit of autumn gloom. It may be that your system is dealing with extra damp-load, biofilm challenge, and your immune system is doing overtime (silently).


Other symptoms of “dampness” you may not have thought of


  • Lungs/airways: persistent cough, wheezy sensation, chest heaviness, feeling like you’re dragging slightly when you breathe deeply (especially after being outdoors in damp/moist weather).

  • Large intestine / colon:  bloating and mucus in the stool. Also sluggish bowel movements, sensation of fullness in the lower belly, maybe looser stools or alternating constipation/looseness (because immune activation in the gut wall can alter motility).

  • General immune fatigue: you may not feel “sick-sick”, but you feel “meh” low-grade malaise, heavier limbs, slower recovery from minor colds, sometimes a flare of sinusitis or persistent blocked nose that doesn’t resolve.


In short: dampness (i.e., mucus and biofilm load) isn’t just annoying it creates a home for viruses, mold spores, bacteria, yeast, parasites. They all love a nice sticky layer to hang out in until your immunity is a little lowered (bad night’s sleep, stress, extra alcohol) then boom they start feeding and proliferating. Result, you catch colds more easily, they hang around longer, your mucus refuses to clear.


Clearing the damp-load: ancient wisdom + modern strategies

The good news,  you don’t have to just survive autumn, you can thrive through it. Here are practical, interesting, evidence-informed strategies pulled from traditional and modern approaches.


Nutrition & lifestyle tweaks


  • Reduce heavy mucus-producing foods: think dairy, refined sugars, processed foods, lots of cold/raw foods if your digestion is weak. Instead emphasise warming, easy-to-digest foods (e.g., soups, steamed vegetables, ginger, garlic, onion, root veggies) and good hydration (warm herbal teas rather than icy drinks).

  • Support lymphatic drainage: movement, encouraging sweating with brisk walk or saunas. Cupping massage and manual therapy’s work well to support lymph drainage.

  • Work on gut health: support your large intestine lining (remember: about 70 % of your immune function sits in the gut/colon lining).

  • Sleep & stress: immune systems take hits when you’re short on sleep or high on stress hormones, so autumn means “get your rest, chill your system”.


Manual therapies: cupping & acupuncture (because yes, they do have research)


Cupping


What is it? Simple version: suction cups (glass, plastic, silicone) are applied to the skin (commonly over lung area, back, shoulders) to create negative pressure. This draws blood into the superficial tissues, stimulates circulation, loosens adhesions, promotes lymph/venous/arterial flow.


  • Immune-modulation: Studies show cupping can modulate immune parameters: cupping reduced levels of pro-inflammatory cytokines in patients. Also there’s evidence of improved mucosal immunity. 

  • Use for lung/dampness: Over the lung/back area, cupping may help shift stubborn phlegm and mucus, stimulate lymphatic drainage from the chest/upper-back region, loosen the “sticky” dampness layer and give you more breathing space. Think: those phlegmy mornings, chest heaviness, slow cough that won’t budge cupping could be a helpful adjunct.


Acupuncture – ST36


  • Location: ST36 is located on the lower leg, about four finger-breadths below the kneecap, one finger-breadth lateral to the tibia. In TCM it’s considered a major point for immune support, digestion, general tonification.

  • Research: There is a growing body of work showing acupuncture (and especially ST36) modulates immune function. For example:

  • In a review: “Anti-Inflammatory Effects of Acupuncture at ST36” found acupuncture at ST36 regulates inflammation pathways and vagus-nerve activation.

  • Another study: “Immunomodulatory mechanisms for acupuncture practice” concluded that electro-acupuncture at ST36 elevated NK cell toxicity in the spleen.

  • A meta-analysis: acupuncture improved white blood cell count after chemotherapy (leukopenia) suggesting real immune-cell modulation.


What this means for you: Stimulating ST36 (and other supportive points) may help your immune system ramp up, help your body clear out “dampness” (in the TCM sense), improve digestion/colon function (so relevant for that gut/colon/immune link), and generally leave you feeling more resilient in this transitional season.


Quick reference list of research for the nerds!



Seasonal change isn’t just about wardrobe swaps and leaf-sweeping. It’s a signal for your body. The compost-pile, the mold spores, the damp air, they all place extra demand on your immune/lymph/gut/respiratory systems.


And here’s the delightful bit, ancient wisdom (TCM) called it “dampness”; modern science calls part of it “biofilms and mucus layers in gut/lungs”. The language has changed but the concept remains: when the environment shifts, your internal environment shifts too, and you can either ride the wave or get wobbly.


By mixing everyday tweaks (warm food, movement), manual therapies (cupping, acupuncture) and simple awareness (how you feel in the morning, what your gut is doing), you give your body the chance to shift out the dampness, clear the sticky stuff, and walk into the colder months feeling clearer, lighter and more resilient.


Remember, the same way compost turns old leaves into nourishment, your body can transform seasonal “dampness” into resilience if you give it the right support.


Book your immune-boosting autumn session to help your body stay strong, clear and grounded as the season shifts.


Let’s keep your Qi flowing smoothly into winter!






Team Learn to Heal

 
 
 

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