Okay, so it wasn’t quite the Mexicoma that Carrie experienced in the Sex and the City movie…

I recently got back from an amazing trip with my friend Vanessa to Mexico City. We visited the incredible Teotihuacan pyramids, went to the Frida Kahlo museum, walked through colorful and vibrant markets, and met some really interesting people along the way. The city has a dusty beauty to it that I didn’t expect to find and it was so cool to spend a few days submerged in a different culture with a great friend.
But the trip had an unfortunate ending. On our last night there both of us began to feel ill. We thought it was the churros (I know, bad me!) that we had after lunch that day. Whatever it was, it had infected both of us and we were now steadily feeling sicker and sicker by the minute. By the next morning things had not gotten better. I went out and found myself a green juice…yes, only a health coach would find a green juice in the middle of Mexico City, and I think that helped me out. Vanessa, on the the other hand wasn’t so lucky. I won’t go into the graphic details but to make a long story short, she left the airport in an ambulance and spent 6 hours in the emergency room hooked up to an IV! I changed our flights and attempted to translate (haha!) what all the nurses and doctors were saying through my nausea. It was a brutal end to an otherwise amazing trip. As Vanessa said, “that’s why they call it Montezuma’s revenge!” LOL At least she had a sense of humor about it.

But this got me thinking. Why is this the case? Why is it that people from Western societies seem to be so fragile when visiting countries in the developing world? Is it just that these places are too dirty, or is it the case that we’re just too clean?
Coincidentally, on the same day Vanessa and I were hanging out in a Mexican ER, a study was published in the journal Science entitled, “Gut Microbes Keep Rare Immune Cells in Line”, that suggests our obsession with germs is weakening our immune systems. The study, conducted on mice, showed that mice that had been exposed to microbes had much stronger immune systems than the ones that were germ-free. In addition, the germ-free mice were more susceptible to intestinal inflammation and asthma and also had an unusually large amount of what are called “natural killer” cells, otherwise known as T cells. These cells trigger inflammation if they sense microbes or molecules known as antigens that are made by our bodies. Basically, having too many of these cells running wild increases the risk of autoimmune diseases.
We are continually learning about autoimmune diseases but what we do know is that they are dramatically on the rise in the developed world, particularly among women. Of the 50 million Americans suffering from autoimmune diseases, 30 million of them are women. This is because our immune system affects our entire body and a woman’s body simply has more elements at risk than a man’s, due to our reproductive systems. So, for example, endomitriosis is a disease that has been linked to autoimmune disorders but one which only affects women. So, as I’m sitting here recovering from my attack of the killer churro, I’m wondering, could my body’s sensitivity and the rise in these diseases both be the result of a weakened immune system caused by an over-obsessive fear of germs?
I’ve always known that antibiotics have a devastating effect on the delicate balance of good and bad bacteria in our guts, but this is just one area of microbes out of many. Bacteria occupies almost every single part of our bodies. Did you know that there are 10 times more bacterial cells in our bodies than human cells? We are more bacteria than we are human! And yet we are brought up to think all germs are bad and must be eradicated. Hello you hand sanitizer addicts, I know who you are! Scientists are now finding compelling evidence that this attitude towards our bacterial bedfellows has wide and far reaching consequences and could be the main cause of the dramatic increase in asthma, allergies, inflammatory bowel disease, and autoimmune diseases in the developed world.
So what to do? As Dr. Allen Meadows from the American College of Allergy, Asthma and Immunology said, “As we’re taking better care of our food, have less dirt and bacteria in our diet, our immune system isn’t being stimulated by those microbes” leading to a less exercised weak immunity. But Doctor, what are you suggesting I do about that? Eat dirtier food??
If that is the solution to this problem, I know a great churro stand in Mexico City you should try!