The Depression Pill Epidemic
Dr. Joseph Mercola, Guest
According to the World Health Organization, depression is the leading cause of ill health and disability worldwide, and increased 18% between 2005 and 2015. In the U.S., an estimated 17.3 million American adults, or 7.1% of the adult population, experienced at least one major depressive episode in 2017. The highest rates are reported among those aged between 18 and 25.
Questions abound, however, over whether clinical depression is actually increasing, or whether people are simply being inappropriately diagnosed, and even more importantly, what the best treatment might be. With regard to treatment, my review will focus primarily on exercise which, rather overwhelmingly, appears to have a solid scientific basis of support.
Many are needlessly taking antidepressants
According to one 2013 study, major depression may be vastly overdiagnosed and overtreated. When Dr. Ramin Mojtabai, associate professor at the Johns Hopkins Bloomberg School of Public Health, evaluated the diagnostics of 5,639 participants with clinician-identified depression, he found only 38.4% of them actually met the DSM-4 criteria for a major depressive episode (MDE). Among seniors over the age of 65, only 14.3% met the criteria. Furthermore:
“[P]articipants with more education and those with poorer overall health were more likely to meet the criteria. Participants who did not meet the 12-month MDE criteria reported less distress and impairment in role functioning and used fewer services. A majority of both groups, however, were prescribed and used psychiatric medications.”
Mojtabai told The New York Times:
“It’s not only that physicians are prescribing more, the population is demanding more. Feelings of sadness, the stresses of daily life and relationship problems can all cause feelings of upset or sadness that may be passing and not last long. But Americans have become more and more willing to use medication to address them.”
An earlier 2009 meta-analysis of 41 studies that assessed the accuracy of diagnoses of depression by general practitioners found “GPs correctly identified depression in 47.3% of cases.” So, over the years, it appears overdiagnosis is becoming more prevalent and not less.
According to this review, findings suggest “that for every 100 unselected cases seen in primary care, there are more false positives (n=15) than either missed (n=10) or identified cases (n=10),” and that “Accuracy was improved with prospective examination over an extended period (three to 12 months) rather than relying on a one-off assessment or case-note records.”
There’s a fine line between depression and normal
While we must not downplay the seriousness of major depression, we must also not lose sight of the fact that the experience of a wide range of human emotions is normal and healthy.
In a controversial move, the bereavement exclusion — where “clinicians were advised to refrain from diagnosing major depression in individuals within the first two months following the death of a loved one” — which was included in DSM-4, was removed in DSM-5 in 2013. As noted in the paper, “The bereavement exclusion and DSM-5: An update and commentary:”
“The removal of the bereavement exclusion in the diagnosis of major depression was perhaps the most controversial change from DSM-IV to DSM-5. Critics have argued that removal of the bereavement exclusion will “medicalize” ordinary grief and encourage over-prescription of antidepressants.
Supporters of the DSM-5’s decision argue that there is no clinical or scientific basis for ‘excluding’ patients from a diagnosis of major depression simply because the condition occurs shortly after the death of a loved one (bereavement). Though bereavement-related grief and major depression share some features, they are distinct and distinguishable conditions.
Bereavement does not ‘immunize’ the patient against a major depressive episode, and is in fact a common precipitant of clinical depression. Recognizing major depression in the context of recent bereavement takes careful clinical judgment, and by no means implies that antidepressant treatment is warranted.
But given the serious risks of unrecognized major depression — including suicide — eliminating the bereavement exclusion from DSM-5 was, on balance, a reasonable decision.”
1 in 6 Americans is on a psychiatric drug
The problem with taking an antidepressant to maneuver through difficult emotional territory is that many end up taking them long-term, and many find they cannot get off them without suffering debilitating withdrawal symptoms. As noted by pharmacist.com in April 2018:
“Initially, the drugs were cleared for short-term use; but even today, with millions of long-term users, there is little data about their effects on individuals who take them for years …
And yet, it is not clear that everyone who is taking an open-ended prescription should stop. Most physicians agree that a subset of users may benefit from a lifetime prescription, though they disagree on the size of that group.”
According to a 2017 study, 1 in 6 Americans between the ages of 18 and 85 were on psychiatric drugs, most of them antidepressants, and 84.3% reported long-term use (three years or more). Out of 242 million U.S. adults, 12% were found to have filled one or more prescriptions for an antidepressant, specifically, in 2013.
Long-term use places life and limb at risk
Research does show there may be a price to pay for the long-term use of antidepressants. For example, one 2015 study found that, compared to perimenopausal women treated with H2 antagonists or proton pump inhibitors (indigestion drugs), selective serotonin reuptake inhibitors (SSRI, a class of antidepressants) raised bone fracture rates by 76% in the first year of use.
After two years of treatment, the fracture rate was 73% higher. In 2017, Canadian researchers warned SSRIs might increase patients’ risk of cardiovascular events by 14% and all-cause mortality by 33%, likely due to their anticlotting properties. As noted in the abstract:
“We conducted a meta-analysis assessing the effects of ADs on all-cause mortality and cardiovascular events in general-population and cardiovascular-patient samples … Seventeen studies met our search criteria. Sample type consistently moderated health risks.
In general-population samples, AD [antidepressant] use increased the risks of mortality (HR = 1.33, 95% CI: 1.14-1.55) and new cardiovascular events (HR = 1.14, 95% CI: 1.08-1.21). In cardiovascular patients, AD use did not significantly affect risks.
AD class also moderated mortality, but the serotonin reuptake inhibitors were not significantly different from tricyclic Ads … The results support the hypothesis that ADs are harmful in the general population but less harmful in cardiovascular patients.”
Low serotonin theory demolished, but antidepressant use goes on
Research published in 2009 also strengthened the evidence indicating the low serotonin idea is incorrect, finding strong indications that depression actually begins further up in the chain of events in the brain. Essentially, SSRIs focus on an effect of depression, not the cause.
As noted by investigative health journalist Robert Whitaker, as early as 1983 the National Institutes of Mental Health investigated whether or not depressed individuals had low serotonin.
At that time, they concluded there was no evidence that there is anything wrong in the serotonergic system of depressed patients. Drug companies kept running with the low serotonin theory, though, as it justified the aggressive use of antidepressants to correct this alleged “imbalance.”
The placebo response in depression
According to the 2015 paper, “Depression: How Effective Are Antidepressants?” studies suggest antidepressants may, on average, improve symptoms in 20 people out of 100. (Studies comparing the drugs to placebo found 20 to 40 out of 100 found relief from placebo alone, while 40 to 60 out of 100 reported improvement on an antidepressant after six to eight weeks.)
Several studies have addressed the surprisingly robust placebo response seen in those with depression. For example, a 2002 paper in the journal Dialogues in Clinical Neuroscience noted that, “With its naturally fluctuating course, depression is a highly placebo-responsive condition: Mean placebo response rates in antidepressant clinical trials are 30% to 40%.”
In those with mild depression, the likelihood of a positive response to placebo is even higher — as high as 70%. This paper also notes that when a placebo effect is at play, the patient will be more likely to experience a relapse, compared to when a true drug response is responsible for the improvement.
It also cites studies showing the placebo response rate tends to be highest “for women with a single episode of depression (66.7%) and lowest for women with recurrent depressive episodes (13.3%).”
Antidepressants may do more harm than good in most patients
In a recent article, professor Dr. Peter C. Gotzsche, co-founder of the Cochrane Collaboration and the Institute for Scientific Freedom, also points out other factors that can influence study results, falsely making antidepressants appear better than placebo in some studies. He writes:
“[V]irtually all trials are flawed, exaggerate the benefits of the drugs, and underestimate their harms … Virtually all patients in the trials are already on a drug similar to the one being tested against placebo.
Therefore, as the drugs are addictive, some of the patients will get abstinence symptoms (usually called withdrawal symptoms) when randomized to placebo, even if a wash-out period before randomization is introduced.
These abstinence symptoms are very similar to those patients experience when they try to stop benzodiazepines. It is no wonder that new drugs outperform the placebo in patients who have experienced harm as a result of cold turkey effects.
To find out how long patients need to continue taking drugs, so-called maintenance (withdrawal) studies have been carried out, but such studies also are compromised by cold turkey effects. Leading psychiatrists don’t understand this, or they pretend they don’t.
Most interpret the maintenance studies of depression pills to mean that these drugs are very effective at preventing new episodes of depression and that patients should therefore continue taking the drugs for years or even for life …
The smallest effect that can be perceived as an improvement on the Hamilton Depression Rating Scale is 5 to 6, but flawed trials attain only approximately 3. Several meta-analyses have found that the effect is larger if the patients are severely depressed, but the reported effects are small and below what is clinically relevant for all severities of depression.”
More health risks linked to antidepressants
Gotzsche also summarizes some of the known harms of these drugs, citing research showing antidepressants:
- Double the risk of harm from suicide and violence in healthy adults. According to this study, the number needed to treat to harm one healthy person was 16
- Increase suicidality and aggression two- to threefold in children and adolescents — “an important finding considering the many school shootings where the killers were on depression pills,” Gotzsche says
- Increase risk of suicide and violence by four to five times in middle-aged women with stress urinary incontinence
- Double the risk of a core psychotic or potential psychotic event in women
“I have described the dirty tricks and scientific dishonesty involved when drug companies and leading psychiatrists try convincing us that these drugs protect against suicide and other forms of violence,” Gotzsche writes, pointing out that “Even the FDA was forced to give in when it admitted in 2007, at least indirectly, that depression pills can cause suicide and madness at any age.”
Whitaker takes it a step further in a commentary he wrote in 2005:
“A review of the scientific literature reveals that it is our drug-based paradigm of care that is fueling this epidemic. The drugs increase the likelihood that a person will become chronically ill, and induce new and more severe psychiatric symptoms in a significant percentage of patients …
… As with any epidemic, one would suspect that an outside agent of some type — a virus, a bacterial infection, or an environmental toxin — was causing the rise in illness. That is indeed the case here. There is an outside agent fueling this epidemic of mental illness, only it is found in the medicine cabinet.”
Criteria for major depression
According to DSM-5 criteria, to receive a diagnosis of major depression, you must:
- Experience five or more of the following symptoms (see symptom list below) during a single two-week period
- At least one of the symptoms must include depressed mood and/or loss of interest or pleasure
- The symptoms must cause you “clinically significant distress or impairment in social, occupational or other important areas of functioning”
- The symptoms must not be related to substance abuse or another medical condition (see “More than 200 commonly used drugs are known to cause depression as a side effect” for more information on medical conditions and drugs that might influence your state of mind)
Major depression symptom list:
|Depressed mood most of the day, nearly every day|
|Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day|
|Significant weight loss when not dieting or weight gain, or decrease or increase in appetite nearly every day|
|A slowing down of thought and a reduction of physical movement (observable by others, not merely subjective feelings of restlessness or being slowed down)|
|Fatigue or loss of energy nearly every day|
|Feelings of worthlessness or excessive or inappropriate guilt nearly every day|
|Diminished ability to think or concentrate, or indecisiveness, nearly every day|
|Recurrent thoughts of death, recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan for committing suicide|
Keep in mind that major depression is typically associated with thoughts of suicide and feelings of deep hopelessness or helplessness, making it critical to recognize and address such symptoms. To assess your or a loved one’s risk factors, see “These types of children have an increased risk of suicidal thoughts,” and “Suicide is on the rise — Know the warning signs, and how to help.”
If you are feeling desperate or have any thoughts of suicide, please call the National Suicide Prevention Lifeline, a toll-free number 1-800-273-TALK (8255), or call 911, or simply go to your nearest Hospital Emergency Department.
What science says about exercise as treatment for depression
If antidepressants are not the answer in most cases of depression, what is? There’s a solid and ever-growing body of scientific evidence showing physical exercise is a major key in the successful treatment of depression. Here’s a short-list of studies and scientific review articles that have investigated this oft-ignored prescription, starting with the most recent:
|JAMA Psychiatry 2018 (a study funded in part by the National Institute of Mental Health) concluded exercise “may have greater efficacy than current approaches that target depressed mood.”
Contrary to popular belief, they found that while physical activity affected the participants’ mood afterward, their mood did not affect the amount of physical activity they engaged in. This defies the common assumption that depression causes physical inactivity. In fact, the results suggest it’s largely the other way around.
|Frontiers in Pharmacology 2017 addressed the question of whether a comparison between exercise and drug treatment is evidence based, noting that:
In conclusion, they found three randomized controlled trials comparing four months of exercise to the use of antidepressants (two of which involved patients with major depression and one recruited those with minor depression). All of them found that exercise and antidepressant treatment were equally effective.
Of 11 randomized controlled trials comparing exercise as an adjunctive treatment to antidepressants (combination comparisons) against a wide variety of controls, 10 of them found “a significant depressive improvement after the exercise period, and/or that the proportion of patients with a clinical response was larger for the exercise group than the control.”
The paper reviews a variety of biological mechanisms by which exercise can benefit those with depression, including boosting BDNF and serotonin and lowering inflammation biomarkers. The authors also point out that:
|Current Opinion in Psychology 2015 highlighted the role of inflammation in depression, and how biological markers can help explain how exercise reduces depressive symptoms. As explained in this review:
Many other studies support the view that depression is mediated, and perhaps directly caused, by inflammation, especially gastrointestinal inflammation. Cytokines in your blood, and/or inflammatory messengers such as CRP, interleukin-1, interleukin-6 and TNF-alpha are all predictive of and correlate to depression.
In melancholic depression, bipolar disorder and postpartum depression, white blood cells called monocytes express proinflammatory genes that provoke secretion of cytokines.
At the same time, cortisol sensitivity goes down, and cortisol is a stress hormone that buffers against inflammation. Together, these inflammatory agents transfer information to your nervous system, typically by stimulating your vagus nerve, which connects your gut and brain.
In one study, the researchers suggested “depression may be a neuropsychiatric manifestation of a chronic inflammatory syndrome,” and that “these findings justify an assumption that treating gastrointestinal inflammations may improve the efficacy of the currently used treatment modalities of depression …”
In this model, depression is the result of your body’s attempts to protect itself from an inflammatory response, and involves hormones and neurotransmitters. Depressive symptoms most strongly associated with chronic inflammation include:
|Asian Journal of Sports Medicine 2015 looked at “systematic reviews, meta-analyses and large-scale randomized control trials on effects of exercise on depression” to devise recommendations for doctors “who plan to use exercise protocols in depression.”
Here, they highlighted 10 different biological effects of exercise known to have a beneficial effect on people with depression. These effects include upregulation or increase in the levels of norepinephrine, serotonin, BDNF, endorphins and endocannabinoids, and a downregulation or decrease in the levels of cortisol, TNF-alpha, IL-1beta, IL-6 and ACTH.
They also note psychosocial effects that have a beneficial impact, such as self-mastery, social interaction and distraction from rumination. According to this evaluation, depressed patients most likely to benefit from exercise are: Under 20 or over 40 years old, have higher education status, untrained, and have mild to moderate depression.
Characteristics of an exercise program most likely to benefit people with depression include: Supervised and/or structured exercise; individually tailored exercise consisting of aerobic exercise and resistance training (or a mix); low to moderate intensity; 45 to 60 minutes per session at least three to four times per week for a minimum of 10 weeks. The authors also encourage physicians to employ a multidisciplinary team, noting that:
|Journal of Clinical Psychiatry 2011 concluded 12 weeks of high-intensity exercise led to a 28.3% remission rate in patients who had previously failed to get any relief from SSRIs.|
|Clinical Psychology: Science and Practice 2006. This meta-analysis of 11 studies concluded doctors would be well advised to recommend exercise to patients suffering from depression, anxiety and eating disorders, as the evidence showed “substantial benefit.”|
|Archives of Internal Medicine 1999 reported 16 weeks of aerobic exercise was just as effective as Zoloft for the treatment of major depression in older patients.|
Consider non-drug solutions first
Addressing your nutrition is perhaps the best place to start if you’re feeling depressed. Foods have an immense impact on your brain, and eating whole foods as described in my nutrition plan will best support your mental and physical health.
Avoiding processed foods, sugar (particularly fructose) and grains is particularly important as it will help normalize your insulin and leptin levels, which is an important contributing factor to depression. Certain nutrients are also known to cause symptoms of depression when lacking, and specific herbs and nutritional supplements may also help counteract symptoms.
To suggest that depression is rooted in nutrient deficiencies and other lifestyle related factors does not detract from the fact that it’s a serious problem that needs to be addressed with compassion and nonjudgment. It simply shifts the conversation about what the most appropriate answers and remedies are.
For a list of nutrients, herbs and supplements that have been shown to be particularly helpful for depression, as well as a long list of studies showing just how ineffective antidepressants are, and guidelines for safe drug withdrawal, please see “What Does the ‘Best Evidence’ Say About Antidepressants?”
**This article (The Depression Pill Epidemic) was originally published at Mercola.com and is re-posted here with permission.**
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