Russ Roberts on Intermittent Explosive Disorder: Mental Illness or Made-Up Malady?

Episode Summary

Executive Summary: Russ Roberts critiques a study claiming 7.3% of Americans may have intermittent explosive disorder, arguing the diagnosis is too loosely defined, scientifically shaky, and potentially driven by incentives for psychiatrists, drug makers, and mandated insurance coverage. He contrasts social-science uncertainty with harder sciences, questions survey-based psychiatric labels, and suggests many cases may be ordinary anger, adolescence, or bad behavior rather than disease.

Main Topics: Questioning the Scientific Basis of IED: Roberts argues that intermittent explosive disorder is defined so broadly and vaguely that a survey cannot reliably establish it as a real biological illness. Survey Methodology and Measurement Problems: The study relied on face-to-face self-report questions about losing control, threatening, or hurting others, which Roberts says can be interpreted inconsistently and may inflate or distort prevalence estimates. Psychiatry, Incentives, and Manufactured Disorders: He suggests the diagnosis may be encouraged by professional and pharmaceutical incentives, turning ordinary human behavior into a treatable disorder. Drug Treatment and Behavioral Therapy: The study’s proposed response—antidepressants and anger-management-like therapy—is presented as a standard psychiatric solution Roberts views skeptically, though he notes drugs may sometimes help behaviorally. Insurance Mandates and Political Economy: Roberts links psychiatric labeling to state insurance mandates, arguing that once a condition is classified as biologically based, it can become a required covered benefit, benefiting lobbyists and providers. Anger, Adolescence, and Normal Behavior: He uses examples like Johnny Cash, golfers, and teenage boys to argue that many “explosive” behaviors may simply be understandable human reactions rather than pathology.

Key Arguments: The study does not provide a biological test or clinical marker; it uses survey responses to create a disorder label. Vague terms like “lost control” and “threatened” are subjective and may produce both underreporting and overreporting. A face-to-face survey may increase disclosure for embarrassing behavior, but it also risks misunderstanding and inconsistent interpretation. Roberts sees the diagnosis as an example of psychiatric overreach: ordinary anger or behavioral problems are reclassified as disease. Pharmaceutical and professional incentives can expand diagnoses because they create demand for drugs and therapy. Insurance mandates can make these diagnoses financially consequential, encouraging lobbying to have them recognized and covered. Many behaviors cited as evidence of IED could be normal responses to frustration, rejection, or puberty rather than a disorder.

Data Points: Estimated prevalence: 7.3% - Share of Americans the study claimed may have intermittent explosive disorder Estimated number of Americans affected: 16 million - Roberts’ extrapolation from the study’s prevalence estimate Survey sample size: over 9,000 Americans - Face-to-face survey used in the study News coverage: almost 400 news stories - Google News coverage following release of the study Onset age for boys: 13 or 14 - Age at which the study said intermittent explosive disorder begins for boys Onset age for women: 19 - Age at which the study said intermittent explosive disorder begins for women Reported drug effectiveness: about 70% - Claim in the Sun-Times story that antidepressants give patients a longer fuse in many cases Professional output example: over 150 scientific articles - Roberts’ late father-in-law’s biochemistry publication count used to contrast real science with psychiatry

Pivotal Quotes: "These people aren't jerks, he said. They have a real problem." — Dr. Emil Kakaro (as reported): Used to frame IED as a biologically grounded disorder rather than bad behavior "This is fake science. It's morally and intellectually bankrupt." — Russ Roberts: His sharp conclusion about the study and the disorder label "They don't call it intermittent explosive disorder. They call it puberty." — Russ Roberts: Closing example about adolescent boys and ordinary developmental behavior

Implications: Listeners should be skeptical of psychiatric labels based mainly on vague surveys, especially when those labels can drive drug use, insurance mandates, and professional incentives. The episode urges caution before treating common anger as disease.