I opened up the Washington Post this morning to see an article titled, what science says about the power of religion and prayer to heal. OK, I’ll bite. What does science say about the power of religion? The author begins with a little anecdote that says it all.
As a medical intern, I once treated a young woman with metastatic breast cancer, whose sparkling blue eyes looked up at me every morning with hope. I did as much as possible for her medically, but unfortunately, her cancer spread further. She developed ongoing fevers and nausea, and soon rarely glanced at me when I entered her room. Most of the days, she lay on her side, fatigued, her face turned to the wall.
She was Catholic, and one day, I noticed that a priest had started visiting her. A week later, when I entered the room, she looked up at me again and smiled. I sensed that she felt a renewed connection to something beyond her.
Sadly, she died a month later, but had seemed far less despondent. Her priest had offered her something that I could not.
Jesus, that’s grim. Noticing that a dying patient smiled at him once after a priest visited her is quite possibly the weakest, most pathetic evidence for the power of religion that I’ve ever heard. The patient died! Not only was she beyond the reach of prayer, but beyond the reach of medicine.
Oh, but we’re supposed to believe that fostering a positive outlook is a benefit. Why? Where’s the benefit? The best the author can do is tell us that polls show that 72% of Americans believe in the power of prayer…but that’s just telling us that a majority of Americans are gullible. Show me something that says it improves health outcomes, doctor!
He gives us four things that religion does.
But evidence suggests that having strong spiritual or religious beliefs, however defined, can assist psychologically in fighting, and coping with, illness. Here are some of the ways prayer and faith can affect patient health.
Brain changes: Neuroscience research shows that strong religious or spiritual beliefs are associated with thicker parts of the brain, providing neuronal reserves that can buffer against depression and despair.
Purpose: Religion and spirituality, broadly defined, provide a sense of meaning, purpose and hope.
Meaning: Many patients come to find or construct their own sources of meaning. It may be through traditional faith or a belief in art, poetry, science, mathematics, nature or the universe. As one patient, who said he was “not religious,” once told me, “I believe in the Third Law of Thermodynamics: Energy can neither be created nor destroy; it merely goes on in another form.”
Social support: Religious and spiritual groups also commonly provide valuable social support and interactions. Such a group doesn’t need to be religious. It could be a yoga group, a book club, or a Facebook discussion group about Harry Potter.
I have a sense of “purpose,” but I am not religious. He undermines his statements about “meaning” and “social support” by mentioning that you don’t need religion to have them, so why demand that people follow a delusion to get them? By the way, that statement about the Third Law of Thermodynamics is not your salvation; if my house were to burn down, it’s no consolation to suggest that my home goes on as heat, gas, and ash.
But it’s his first claim that irritated me, this idea that religion/spirituality is associated with “thicker parts of the brain” that can provide “neuronal reserves that can buffer against depression and despair”. WTF? How does that work?
That’s the only part of the article that includes a link, so I followed it to see what evidence he’s got. It leads to a systematic literature review published in the Harvard Review of Psychiatry, and it is a godawful hodgepodge of random results coupled to wishful thinking. It summarizes the observations made in EEG, PET scans, and fMRI to try and find a consistent, meaningful effect of religiosity on brain activity or morphology. It fails. It’s full of tables like this one.
You tell me: what does “greater posterior alpha” or “negative association between left medial orbitofrontal cortex volume and neurofeedback performance” mean in the sense of providing a benefit to the subject? Study after study is listed, and they all show different patterns of differences. These are all studies of religion/spirituality that, I would guess, are all looking for correlations of something, anything with religious belief, and they all publish whatever parameter they fish up. Never mind that religious experiences are diverse, or that the development of the brain is a complex process that is going to provide all kinds of spurious variations. You put people in complicated, sensitive machines, and you can get a number out. That’s publishable!
But what about that claim of neuronal reserves
that made my spidey sense tingle? Here’s the bit where the Harv Rev Psych article talks about it. I’ve emphasized the words that represent guesswork.
Taken together, it is reasonable to speculate that these brain regions represent access to a neural reserve that likely results from the process of neuroplasticity. A greater neural reserve could, in turn, support an enhanced cognitive reserve that enables R/S people to cope better with negative emotions, more readily disengage themselves from excessive self-referential thinking (e.g., rumination), and ultimately be more resilient in the face of various psychopathologies.
They have no evidence for any of that. Saying that something is a result of “neuroplasticity” is meaningless — I’d go so far as to say that most of the variation in the brain is from neuroplasticity. The existence of a “neural reserve” is hypothetical and not demonstrated at all. You can’t just point to a thickened chunk of cortex and call it a “reserve”! They then go on to suggest that these “reserves” enable religious/spiritual people to cope with negative emotions and be more resilient, phenomena that were not evaluated in any of the studies!
That paragraph was pure, unadulterated bullshit. You don’t need a Ph.D. in neuroscience to see that — it’s an unsubstantiated collection of wishful thinking that should not have passed peer review. The whole paper is a tremendous amount of work, sifting through a huge literature that is shot through with delusional vagueness, trying to extract a few reliable, useful interpretations, and not finding any. The paper does not find evidence of neuronal reserves that can buffer against depression and despair
, but that does not stop the WaPo writer from claiming positively that it does.
I am once again confirmed in my expectation that any attempt to justify religion with science is only going to produce bad science.