By Denise Westman, Outreach Director

Imagine: You’re feeling so depressed that you visit your doctor and request a prescription for a mood elevator. Instead of writing you a prescription for Prozac or a similar antidepressant, she advises you to get dirty. While you consider changing doctors, she describes how getting dirty changes your brain chemistry. The microbes in dirt, she says, tweak the same neurons that are stimulated by Prozac. Your options, she explains, are an expensive drug plus its possible side effects, or gardening, yard work, or a romp in the park. Your doctor, it turns out, hasn’t gone round the bend. She is actually up-to-date on the latest scientific findings about how the natural environment affects our brain function.
The dirt-and-Prozac connection surfaced a couple of years ago from Dr. Chris Lowry and his colleagues at the University of Bristol and University College London. They exposed lung cancer patients to a common, inoffensive microbe called Mycobacterium vaccae, found in soil. The patients unexpectedly reported increases in their quality of life, including a brighter mood. The researchers wondered if this effect was caused by stimulation of neurons in the patients’ brains that produce serotonin, a feel-good chemical.
Taking the next step, they broke up M. vaccae into fragments with sound waves and injected them into the windpipes of anesthetized mice. When compared to controls, the mice exposed to M. vaccae had more activity in serotonin-producing neurons and higher levels of serotonin in several areas of the brain. “[The bacteria] had the exact same effect as antidepressant drugs,” Dr. Lowry said. The scientists said that one might derive dirt’s benefit directly by rooting around in a vegetable garden, or by eating lettuce or carrots picked from that garden. Popular media ran with the findings. “Is Dirt the New Prozac?” asked Discover magazine.
The dirt-and-Prozac connection fits with a recent idea in medicine called the “hygiene hypothesis.” According to this concept, exposure early in life to the bacteria, fungi, and viruses found in common, everyday dirt is necessary to stimulate our immune system. When children are exposed to the stew of microbes in dirt, their immune systems become stronger. The immune system also learns to ignore substances like pollen or the dandruff of pets, which can trigger asthma and allergies. Researchers have shown, for example, that kids who grow up in dirty environments such as farms have a lower incidence of infections, asthma, allergies, and eczema later in life, compared to kids raised in urban environments in which parents try to keep them squeaky clean.
For a century and a half we have waged merciless war on filth through public health measures such as public sanitation systems and water purification programs. These developments have been enormously successful. The increase in lifespan in modern societies is due largely to the reduction of death rates from diseases such as typhoid and cholera, which in nineteenth-century America were called “filth diseases.” 

We have to wonder, however, if we have gone too far in our obsession with hygiene. Throughout our evolutionary history our ancestors lived in intimate contact with dirt, and its influence, we now see, was not all bad. We evolved in the outdoors, and we are beginning to glimpse the price we are paying for shutting ourselves off from nature.
Don’t worry. Nobody is suggesting that we never bathe or clean our bathrooms. Neither is it necessary to inject M. vaccae into our windpipe. If we merely go for a walk in the woods, grub around in our vegetable garden, or weed our flowerbeds, we get a dose of the good bugs simply by inhaling.
“Nature deficiency disorder” has been proposed as a term for the problems we create when we build a wall between the natural world and ourselves. I am highly susceptible to this malady. When I spend too much time indoors, I become increasingly moody and morose. There’s only one cure: take a hike, go camping, or root around in my veggie garden. These activities are more than a hobby; they have become an essential part of my life and an important element in my personal health plan.
What about kids? Not so long ago, play and getting dirty were pretty much the same thing — frolicking in a sand box, making mud pies, romping in parks. Now many parents are horrified by dirty play. Keeping kids spotless and unsoiled, however, may be setting them up for trouble later on, because without exposure to nature’s medley of microbes our kids can grow up with confused, weak immune systems. Can we rethink the prohibition on dirty play for the sake of our children’s health?
Antidepressant medication can sometimes be a treatment of choice. It can work wonders, and in some instances can be life-saving. But if your doctor advises you to get dirty instead of taking a pill to perk up your mood, don’t look at her strangely. Pride yourself on having a physician who is on the cutting edge. Our students learn that living sustainably means giving back as you take, and it is a cycle of living in balance that will ideally sustain itself.
Pacific Quest wilderness therapy program is the only outdoor program that utilizes a ®Sustainable Growth Model. Our students live on an organic farm and participate in a curriculum that focuses on the mind~body~emotion connections. Our approach is unique, innovative, and cutting edge.

References:

Lowry CA, et al. Identification of an immune-responsive mesolimbocortical serotonergic system: Potential role in regulation of emotional behavior. Neuroscience. 2007; 146(2):756-772. Doi: 10.1016/j.neuroscience. 2007.01.067.
Glausiusz J. Is dirt the new prozac? Discovermagazine.com. http://discovermagazine.com/2007/jul/raw-data-is-dirt-the-new-prozac. June 14, 2007. Accessed August 8, 2009.

By Alicia Goldman

Aloha! I am Alicia Goldman, and I am the new Director of Alumni and Family Services at Pacific Quest wilderness therapy program. My role is two-fold…one role being a resource to assist families and bridge the transition from PQ back into the home environment. For many families this can be a fragile and trying time, and my goal is to help facilitate as smooth a transition as possible. The other piece of my role is to reach out to the alumni families and help them stay connected to their experience at PQ. All of us at Pacific Quest feel that our past students and families play an important and essential role in our Ohana. We want to help our past students and families to remain connected to their experience and journey at Pacific Quest after they leave Hawaii. Our hope is for past students to possibly reconnect with the friendships they found at Pacific Quest wilderness program, for parents to find resources and support from one another, and for prospective families to have a place where they can begin to feel that hope and healing are possible. While this is a new role for PQ, I see it as an integral piece of the journey, and what helps to make the Pacific Quest wilderness therapy program experience so unique.

Over the past 8 months I have reconnected with hundreds of former PQ students and their families, and the experience has been extraordinary!! It is wonderful to hear about how students are doing now, both their triumphs and continued challenges, and how they are still utilizing the skills and philosophies they learned while in Hawaii with us. I am also moved by how incredibly grateful families are, and their strong interest in staying connected to PQ and to other families, as well. I am thrilled to report that there has been PQ alumni gatherings in Boston and Northern California already, with an upcoming one in the NY area and others to follow around the country!

On a recent visit to Hawaii I was lucky enough to visit with students and participate in what constitutes a “normal day” in the field. A few students taught me about the process behind planting new seeds. They were able to make connections of how being at PQ has helped them plant the “seeds” to start their new stories in their own lives, as well. I was lucky enough to witness a group of students and staff getting ready to harvest a huge amount of bananas from a tree in their camp. I watched as they worked together to figure out the best way to get the bananas down, without damaging a nearby hale (small hut each student has at camp) or the bananas. They talked through several different scenarios. It took patience, cooperation and communication and they worked together to harvest the fruit successfully. Everyone felt very accomplished and happy. I asked everyone to guess how many bananas were harvested in the bundle, which became a fun contest (I guessed 64, but there were 144!).

I told the group about my role and asked them if they thought they would want to stay connected to their peers post PQ. One student stood up and said, “Absolutely. I mean, how often do kids like us get to harvest a big bunch of bananas?? It’s definitely a bonding experience.” We all laughed. Others spoke about how connected they feel to the work they are doing at PQ, to each other, how they have learned about themselves, and about how to be in healthy relationships. I challenged them to think about how getting back to the routine of their lives might diminish these feelings. A student said, “That’s why we need to be able to stay connected to our friends from PQ. So when we need a reminder we can just reach out and ask for help.” That about said it all.