Showing posts with label serotonin. Show all posts
Showing posts with label serotonin. Show all posts

Tuesday, June 22, 2010

The Amazon's Antidepressant | Ayahuasca



Gringos who go to the Amazon are usually there to perform some ethno-botanical experiments with ayahuasca, a sacred concoction brewed from the ayahuasca vine, chacruna leaves, and a variety of forest goodies.

I thought only hippies and New-Age "witches" took ayahuasca seriously outside of the jungle. I was very surprised, then, when my hosts decided I should travel to a shamanic village deep in the jungle and try the sacred ayahuasca. I declined politely, because all I'd heard of ayahuasca was that it was like peyote - which is to say that it made you so sick you started hallucinating. The offer lingered in my mind, though ... had I overstayed my welcome that badly, or did ayahuasca truly have something to offer me?

Fast forward five years and I've learned that (in addition to being a vehicle for rapid entrance into the spirit realms) practitioners of Western medicine have discovered ayahuasca can also be used as an anti-depressant - and they're taking it seriously enough to begin clinical research. Kira Salak reported in her March 2006 article for National Geographic:
"At the vanguard of this research is Charles Grob, M.D., a professor of psychiatry and pediatrics at UCLA's School of Medicine. In 1993 Dr. Grob launched the Hoasca Project, the first in-depth study of the physical and psychological effects of ayahuasca on humans. His team went to Brazil, where the plant mixture can be taken legally, to study members of a native church, the UniĆ£o do Vegetal (UDV), who use ayahuasca as a sacrament, and compared them to a control group that had never ingested the substance. The studies found that all the ayahuasca-using UDV members had experienced remission without recurrence of their addictions, depression, or anxiety disorders. In addition, blood samples revealed a startling discovery: Ayahuasca seems to give users a greater sensitivity to serotonin—one of the mood-regulating chemicals produced by the body—by increasing the number of serotonin receptors on nerve cells.

Unlike most common antidepressants, which Grob says can create such high levels of serotonin that cells may actually compensate by losing many of their serotonin receptors, the Hoasca Project showed that ayahuasca strongly enhances the body's ability to absorb the serotonin that's naturally there.

"Ayahuasca is perhaps a far more sophisticated and effective way to treat depression than SSRIs [antidepressant drugs]," Grob concludes, adding that the use of SSRIs is "a rather crude way" of doing it. And ayahuasca, he insists, has great potential as a long-term solution."

Yes, that's a huge chunk of text, but it's important because it shows that ayahuasca could work as an antidepressant without all the nasty (often, enduring!) side effects from mainstream antidepressants.

The primary ingredient of ayahuasca is the Banisteriopsis caapi vine, which is mixed with the shrubs containing dimethyltryptamine. Dimethyltryptamine is a naturally occurring psychedelic drug said to be analogous to the neurotransmitter serotonin. Neat, right? The problem is, each brew seems to vary in potency depending on the brewer.

Oh, and heads up: "In addition to its hallucinogenic properties, caapi is used for its healing properties as a purgative, effectively cleansing the body of parasites and helping the digestive tract" (Thanks, Wikipedia!).

Ever die of dysentery playing Oregon Trail? It's like that, only in South America.

Dr. Grob explains some the long-term effects of ayahuasca below:






It's clear that taking ayahuasca is not something that should be done on a lark - still, I want to experience it after reading Kira Salak's personal website and her article, but that's more to do with the the fact that I've taken "mainstream" antidepressants and haven't been impressed by them. After more research is done, I'd be willing to give it a try ...

... I'll have to find a decent "guide" to walk me through the experience, however - I don't want to end up in bat country!

Saturday, April 24, 2010

Comfort Food


My weapon of choice.


A friend of mine mentioned that he'd had the kind of morning "that makes you want to eat a whole box of donuts." Not being into sweets, I asked, "Dude. Why the high carb load?". A discussion ensued about the definition of "comfort food" and its effects on the body and mood. Do all comfort foods necessarily contain carbohydrates, as he maintained, or do people choose their "comfort food" due to pleasant associations with comforting, delicious dishes from their pasts, as I contended?

His argument was that when people refer to "comfort food", they have snacks and meals high in "feel good" carbohydrates in mind. Indisputable tastiness aside, there may be another good, objective reason for reaching for that donut (or box of donuts, if you're having a day). It turns out that eating carbohydrates raises serotonin levels, a neurotransmitter which "facilitates sleep, diminishes pain, and reduces appetite " (more on this later!) as well as "elevates mood" according to research from MIT back in the 1970s.

Dr. Richard Wurtman and Dr. John Fernstrom discovered that a person must consume sweet or starchy carbohydrates with minimal or no protein for the brain to make serotonin. You hear that, loves? You now have proof from Science that you can engineer your good mood with chocolate chip cookies. Also, point one to friend.



For SCIENCE!
*warning* excess consumption may cause obesity, but who cares? you'll be happy.


*I* happen to love a different kind of comfort food. Give me a good, hot medium -rare ribeye, or a plate of perfectly roasted chicken and baked potatoes, and I'm golden. My friend claimed those dishes were not your classic "comfort food" choices, to which I respond now with my secret weapon, Dr. Brian Wansink.

Dr. Wansink, a professor of consumer behavior at Cornell University, defines "comfort food" as "a specific food consumed under a specific situation...a food a person eats to obtain a degree of psychological comfort."  The definition of "comfort food" does not require a certain kind of food, but it does require that the food fulfill an emotional need. Point one for me.

His studies show that choosing a "comfort food" is more complex than just reaching for something "high carb". For example, there are definite differences in choice along gender lines. Men and women seem to crave different foods; these differences are potentially based on personality traits and cultural attitudes.  Men will typically choose hot, prepared meals; a steak, pizza, or pasta, possibly because they're thought of as "manly fare". Women indulge in ready-to-eat snack foods such as chocolate, possibly because they're sick of cooking said "manly fare".

In the interest of full disclosure, his work did state that the number one comfort food reached for by both men and women was ice cream. Is it the high carb content (around 16-20 g per 1/2 cup)? Is it the care-free childhood memories associated with licking strawberry ice cream off your sugar cone in summer? It's the perfect nostalgic package, and it proves both my and my friend's points.

Happily, consumption of carbohydrate-rich food is actually necessary to remain slim, because its effect on appetite is to make one feel full before one's stomach is actually full. So, eating carbs helps you not overeat, and it keeps your mood levels in the socially acceptable zones.  Bingeing on the carbs isn't so hot, but doctors and scientists like the two fabulous Dr. Ws will keep up the good research and keep us consumers out of trouble.