Cognitive Dissonance: The Silent Barrier Preventing Optimal Patient Care
For the past five years, I have focused on deciphering complex hormonal and metabolic science to deliver optimal health outcomes. I have found that the biggest impediment to adopting life-saving, evidence-based practices is not a flaw in the data, but a powerful psychological mechanism known as Cognitive Dissonance (CD).
Cognitive dissonance is the profound mental discomfort that arises when presented with evidence that directly contradicts one's deeply ingrained, established beliefs. Our medical training, the crucial "early lessons" we first heard and learned, is often cemented in the brain as absolute gospel truth. When newer, higher-quality science challenges that initial framework, the brain’s natural, comfortable response is to reject the new truth to avoid this severe psychological discomfort in favor of comfort and conformity.
The True Cost of Confirmation Bias in Clinical Practice
This discomfort fuels confirmation bias, maintaining outdated dogma and often leading to the continuation of ineffective or potentially harmful treatments.
When practitioners reject contemporary, nuanced science regarding hormonal and metabolic health, the consequences for patients are profound:
Guideline Inertia: Professional bodies and medical society guidelines often under-emphasize the profound safety and benefits of bioidentical estradiol and micronized progesterone, while broadly endorsing other therapies, even those with mixed evidence, due to this inherent bias.
The Rejection of Essential Therapy: We see this acutely in hormone optimization. For example, some clinicians stubbornly refuse to prescribe hormone therapy even to women with severe deficiency (e.g., T-scores of -3.6) because "hormones are bad," prioritizing that dogma over the patient's health. Similarly, patients themselves, influenced by widespread fear and misinterpretation of legacy trials, often resist estradiol and progesterone despite clear mortality benefits.
Ignoring Collateral Damage: This bias allows harmful practices to persist. For instance, the use of synthetic progestins (like Provera) is associated with increased thrombosis, inflammation, and atherosclerosis, yet some continue to recommend or prescribe them. Conversely, the protective effects of testosterone and estradiol are often ignored, leading to a state of negative informed consent, where patients are not warned about the severe health risks (e.g. increased mortality, heart disease, diabetes, and fractures) associated with being hormone-deprived.
Why Good Science is Judged "Worthless"
The most glaring manifestation of cognitive dissonance occurs when high-grade scientific evidence is dismissed simply because it conflicts with a long-held belief. This often happens in the debate surrounding oral estradiol, which many physicians fear causes blood clots, generalizing the risks of older synthetic or conjugated molecules (like Premarin and PremPro).
When confronted with robust data showing the safety and efficacy of modern estradiol therapy, the ingrained bias forces individuals to declare the studies "worthless".
Consider the evidence from high-quality trials regarding estradiol:
The Danish Osteoporosis Prevention Study (DOPS): This was a 10-year randomized controlled trial (RCT) using oral estradiol that showed no increase in blood clots. Devastatingly, the study was stopped in 2002 out of fear after the Women's Health Initiative (WHI) press conference, but the resulting data showed an overall 50% reduction in all-cause mortality and cardiovascular incidents.
The Finnish Study: Another powerful 10-year RCT utilizing oral estradiol, which demonstrated an overall relative risk of blood clots of 0.8, indicating a protective effect. It showed significant reductions in death from myocardial infarction (MI), stroke, cardiovascular disease, and all-cause mortality.
These are considered Grade A randomized control trials. Yet, those operating under cognitive dissonance will quickly reject these landmark findings, often labeling them as "lousy studies". The resistance stems from a failure to grasp the fundamental distinction between different quality studies:
Grade A Evidence (The Truth): High-quality interventional trials like the DOPS and Finnish Study, which demonstrate clinical outcomes when a hormone (like estradiol) is actively administered. These studies consistently show profound benefits and safety.
Grade D Evidence (The Illusion): Flawed, weak retrospective reviews of insurance databases that only show associations, not causation. These "studies" often reveal that high baseline levels of hormones are associated with poor outcomes (e.g., high estradiol in obese men is linked to harm).
The critical error, born from cognitive dissonance, is extrapolating the observed association from Grade D observational studies (which often measure high endogenous estradiol produced by visceral fat in sick individuals) and claiming it proves causation for high-grade interventional therapies. Accepting the protective results of the DOPS and Finnish studies would require admitting that what was first taught, that "estrogen is bad", was entirely incorrect.
Choosing Curiosity and Critical Insight
The challenge of Cognitive Dissonance is formidable, but surmountable. It requires professional humility, the willingness to acknowledge that what we once believed may no longer be true.
We must abandon fast, comfortable thinking. The antidote is intellectual rigor, driven by curiosity and an unyielding commitment to data. We must demand robust, outcome-based evidence, distinguishing between weak studies (like Grade D retrospective insurance database reviews) and powerful, interventional trials.
When a patient or colleague challenges your evidence-based plan, remember that their resistance is likely rooted in this psychological mechanism. Our duty is to provide transparent, coherent education, illuminating the profound difference between the old dogma and the new science. My education at Rush University stressed the importance of disseminating new research and data, as I’m sure most providers’ education did, but this is an impossible task to accomplish if we cannot let go of our cognitive dissonance.
To truly progress and deliver optimal outcomes, we must embrace intellectual humility and let go of our cognitive dissonance. We must abandon this fast, comfortable thinking and confront the harsh reality of flawed historical teaching, enabling us to embrace the truth of the current science, regardless of how uncomfortable it makes us or our peers.
- Luke Swift, DNP, APN-FPA, PMHNP-BC, ABHRT
