Biological Beliefs About Depression May Prolong Antidepressant Use & Hinder Recovery

The way we understand depression profoundly impacts our recovery, and emerging evidence suggests that believing depression is simply a chemical imbalance can actually hinder healing. While hormonal imbalances, like those involving thyroid function, often have straightforward medical solutions, depression is far more complex. This isn’t to say biology plays no role, but rather that our beliefs about why we’re depressed shape our treatment journey in surprising ways.

For years, the dominant narrative around depression has centered on a chemical imbalance in the brain – a simplified explanation vigorously promoted by pharmaceutical companies and anti-stigma campaigns. Though, despite its widespread acceptance, there’s almost no evidence to definitively support this claim. A recent study from the United Kingdom adds to a growing body of research highlighting the potential harms of this biological framing.

Biological Beliefs and Prolonged Antidepressant Use

Researchers at University College London surveyed nearly 500 individuals in the UK receiving therapy for depression and anxiety. The study, led by Mollie Griffin Williams, explored the connection between beliefs about depression and antidepressant usage. Participants were asked whether they attributed their depression to a brain abnormality or to negative life events. The findings revealed a concerning trend: those who held biological beliefs about depression – believing it stemmed from a brain flaw – tended to remain on antidepressants for longer periods, were more likely to feel unable to cope without them, and were less inclined to attempt discontinuation.

Specifically, nearly 40 percent of individuals with biological beliefs had been taking antidepressants for over two years, compared to just 25 percent of those who didn’t share those beliefs. Only around 58 percent of those with biological beliefs had ever tried to stop antidepressants, versus approximately 67 percent of those without such beliefs. Importantly, the study found no evidence that individuals with biological beliefs experienced more severe depression, suggesting their prolonged medication use wasn’t simply due to a greater illness burden.

This prolonged use isn’t without risk. Antidepressants, while helpful for many, can alter nervous system functioning and carry potential side effects. Approximately half of those taking Selective Serotonin Reuptake Inhibitors (SSRIs) experience a dulling of sexual desire and sensation, and for some, this can become a permanent condition known as post-SSRI sexual dysfunction (PSSD). Discontinuing antidepressants can trigger distressing withdrawal symptoms like insomnia, anxiety, and “brain zaps” – shock-like sensations in the head, with more severe withdrawal symptoms potentially linked to longer durations of use.

Beyond a Chemical Imbalance: An Evolutionary Perspective

If depression isn’t simply a biological abnormality, how should we understand it? An emerging perspective, rooted in evolutionary psychiatry, suggests that depression may be a designed signal – a way for our brains to communicate that something in our lives isn’t functioning optimally and requires change. This viewpoint frames depression not as a flaw, but as an adaptive response to challenging circumstances, prompting us to re-evaluate our goals, relationships, or career paths.

This perspective is associated with a school of thought known as evolutionary psychiatry. Evolutionary psychiatry often views mental illnesses like depression, anxiety, or attention-deficit/hyperactivity disorder (ADHD) as adaptations that humans use to survive and thrive. Seeing depression as a signal, rather than a disorder, can be empowering. It suggests that healing isn’t solely about correcting a chemical imbalance, but about identifying and addressing the underlying issues that triggered the response.

Interestingly, research suggests that believing depression is a “designed signal” may actually improve treatment outcomes. Individuals who view their depression as meaningful are often more optimistic about recovery, perceive their condition as temporary, and experience less stigma when discussing it.

The Role of Locus of Control

The belief that depression stems from a biological cause can too diminish a person’s sense of agency – their belief in their ability to influence their own circumstances. This concept, known as an external locus of control, can lead individuals to feel helpless and reliant on external solutions, like medication, rather than actively participating in their own healing process. Conversely, viewing depression as a response to life’s challenges fosters a sense of empowerment and encourages proactive problem-solving.

It’s crucial to note that this isn’t to dismiss the role of biology entirely. Thyroid imbalances, for example, can significantly impact mood and contribute to depressive symptoms. However, as the research suggests, the way we interpret the origins of our depression has a powerful effect on our path to recovery.

What Which means for Treatment and Moving Forward

The implications of these findings are significant. While antidepressants can be life-saving for some, they aren’t a one-size-fits-all solution. A more nuanced approach to depression treatment involves exploring the underlying causes, addressing life stressors, and empowering individuals to take an active role in their own well-being. This may involve therapy focused on identifying and changing unhelpful thought patterns and behaviors, lifestyle modifications like exercise and improved sleep hygiene, and addressing social and environmental factors that contribute to distress.

If you are experiencing symptoms of depression, it’s crucial to consult with a qualified healthcare professional. A thorough evaluation can help determine the most appropriate course of treatment, taking into account your individual circumstances and beliefs. Consider seeking a therapist who is open to exploring different perspectives on depression, including the evolutionary framework, and who can help you identify the underlying factors contributing to your distress. Remember, understanding your depression is the first step towards reclaiming your well-being.