The history of major depressive disorder is a long story of changing ideas about low mood, loss, and mental health. What people once called melancholia, and later treated with rest, baths, prayer, or confinement, is now understood as a health condition that can be described, studied, and treated in several ways. Tracing that journey helps explain why depression is talked about so differently today, and why old ideas still shape how people think about it.
Major depressive disorder is a mental health condition marked by a persistently low mood and a loss of interest or pleasure, along with other changes in sleep, appetite, energy, and thinking. This article looks at how that understanding developed over time. It is for general information only and is not a diagnosis or a substitute for professional advice.
Key Takeaways
- Depression has been described for thousands of years, first under the name melancholia.
- Early explanations mixed spiritual, physical, and psychological ideas, and treatments ranged from gentle care to harsh confinement.
- Thinkers from Hippocrates to Cicero, Rhazes, and Robert Burton each added a different view of what low mood might mean.
- In the twentieth century, psychological, cognitive, and biological explanations began to work alongside each other.
- The term major depressive disorder entered the DSM-III in 1980, giving the condition a shared definition for clinicians and researchers.
What Major Depressive Disorder Means Today
Today, major depressive disorder is described in diagnostic manuals as a pattern of symptoms that lasts for a period of time and affects daily life. The emphasis is on a combination of mood, thinking, sleep, appetite, and energy, rather than on a single cause. That way of describing it is relatively recent. For most of history, people used broader words such as melancholy or melancholia, and they understood low mood through the beliefs of their time.
Ancient Understandings of Melancholia
The earliest written accounts
The earliest written accounts of what is now known as depression appeared in the second millennium B.C.E. in Mesopotamia. In these writings, depression was discussed as a spiritual rather than a physical condition. Like other mental health difficulties, it was believed to be caused by demonic possession, and it was dealt with by priests rather than physicians.
Demons and evil spirits
The idea that depression was caused by demons and evil spirits has existed in many cultures, including those of the ancient Greeks, Romans, Babylonians, Chinese, and Egyptians. Because of this belief, it was often treated with methods such as beatings, physical restraint, and starvation in an attempt to drive the demons out. Greek and Roman doctors also used gentler therapeutic methods, such as gymnastics, massage, diet, music, baths, and medicines containing poppy extract, to treat their patients.
Hippocrates and the humours
Hippocrates, a Greek physician, suggested that depression, initially called melancholia, was caused by four imbalanced body fluids called humours: yellow bile, black bile, phlegm, and blood. Specifically, he thought that melancholia was caused by too much black bile in the spleen. His treatments of choice included bloodletting, baths, exercise, and diet. Although the theory of humours is no longer used, Hippocrates was important because he looked for a physical explanation inside the body rather than a purely spiritual one.
Cicero and psychological causes
A Roman philosopher and statesman named Cicero, in contrast, believed that melancholia had psychological causes, such as rage, fear, and grief. His view is a reminder that psychological explanations of low mood are not new. They have been part of the conversation for more than two thousand years.
Cornelius Celsus and Rhazes
During the common era, many harsh and primitive treatments for depression continued to be the norm. Cornelius Celsus, writing in the first century C.E., reportedly recommended very harsh treatments, including starvation, shackles, and beating, in cases of mental illness. A Persian doctor named Rhazes, who lived from 865 to 925 C.E., took a different view. He saw mental illness as arising from the brain and recommended treatments such as baths and a very early form of behaviour therapy, which involved positive rewards for appropriate behaviour.
The Middle Ages and the Renaissance
Lunatic asylums
During the Middle Ages, religion, especially Christianity, dominated European thinking on mental illness, with people again attributing it to the devil, demons, or witches. Exorcisms, drowning, and burning were popular treatments of the time. Many people were locked up in so-called lunatic asylums.
The Renaissance
During the Renaissance, which began in fourteenth-century Italy and spread throughout Europe during the sixteenth and seventeenth centuries, witch hunts and executions of the mentally ill were still quite common. However, some doctors were revisiting the idea of mental illness having a natural rather than a supernatural cause.
Robert Burton and The Anatomy of Melancholy
In 1621, Robert Burton published The Anatomy of Melancholy, in which he outlined the social and psychological causes of depression, such as poverty, fear, and loneliness. Burton also discussed the physical causes, and he recommended treatments including diet, exercise, travel, music, and meaningful work. His book is still remembered because it treated melancholy as a human experience with many possible causes, rather than as a single spiritual failing.
The Age of Enlightenment
During the eighteenth and nineteenth centuries, also called the Age of Enlightenment, depression came to be viewed as a weakness of temperament that was inherited and could not be changed. During the latter part of this period, doctors began to suggest the idea that aggression could be a factor in depression, and yet others sought to identify the physical causes of this condition. Treatments during this period included rest, diet, and, for some people, confinement in asylums.
The Nineteenth and Early Twentieth Centuries
Emil Kraepelin
In 1895, the German psychiatrist Emil Kraepelin distinguished manic depression, which he called manic-depressive insanity, from other forms of mental illness. His work helped to separate mood disorders from conditions such as schizophrenia, and it set the stage for later classifications of depression.
Sigmund Freud
In 1917, Sigmund Freud wrote about mourning and melancholia, where he theorised about melancholia as a form of grief turned inward. He felt that psychoanalysis could help a person resolve these unconscious conflicts, reducing self-blame and low mood. Freud’s ideas were influential, even though later approaches to depression developed in very different directions.
Behaviourist ideas
The behaviourists rejected the idea that depression was caused by unconscious forces and instead suggested that it could be learned. From this point of view, a loss of rewarding activity and a pattern of withdrawal could keep low mood going. That idea later fed into treatments that focus on activity, routine, and behaviour.
Cognitive Theories and the Emergence of CBT
Aaron Beck
During the 1960s and 1970s, cognitive theories of depression began to emerge. The cognitive theorist Aaron Beck suggested that depression involves patterns of thinking that focus on the negative. According to Beck, depressed people tend to automatically interpret events in negative ways and view themselves, the world, and the future in a negative light. Beck’s work led to cognitive therapy, which helps people notice and test unhelpful thoughts.
Martin Seligman and learned helplessness
The psychologist Martin Seligman suggested that learned helplessness could play a role in the development of depression. When people feel that their actions make no difference, they may stop trying, and that sense of helplessness can deepen low mood. Seligman’s idea helped explain why a sense of control and agency matters for mental health.
The emergence of CBT
The emergence of these cognitive models of depression played an important role in the development of cognitive behavioural therapy, known as CBT. CBT combines work on thoughts with work on behaviour, and it is now one of the most widely used talking therapies for depression.
The Medical Model and Biological Explanations
During the 1970s, the medical model of mental disorders emerged and suggested that mental disorders could be understood in a similar way to physical illness, with causes, symptoms, and treatments that could be studied. Biological explanations for depression focus on factors such as genetics, brain chemistry, hormones, and life stress. These explanations do not replace psychological and social ones. Most modern accounts describe depression as involving a mix of biological, psychological, and social factors.
How Treatment Changed Over Time
Early physical treatments
During the late nineteenth and early twentieth centuries, treatments for severe depression were often limited and, in some cases, harmful. Lobotomy, a surgical procedure on the brain, was used for some severe mental health conditions, but it is no longer used as a treatment for depression. Electroconvulsive therapy, known as ECT, was introduced as a treatment that uses a controlled electrical current to bring about a brief seizure. It is still used today in some situations, with modern safeguards and anaesthesia, usually when other treatments have not helped.
Subtypes of depression
In the 1950s and 1960s, doctors divided depression into subtypes, including endogenous depression and neurotic or reactive depression. Endogenous depression was thought to result from genetics or some other physical cause. The neurotic or reactive type of depression was believed to be the result of outside problems, such as bereavement or other stressful events. These subtypes are no longer used in the same way, but they show how doctors were trying to separate different patterns of depression.
The first antidepressant medicines
The 1950s were an important decade in the treatment of depression, because doctors noticed that a drug used for tuberculosis, isoniazid, could lift mood in some patients. One of the first drugs to emerge for the treatment of depression was Tofranil, known as imipramine. Other antidepressants later emerged, including Prozac, known as fluoxetine, in 1987 and Zoloft, known as sertraline, in 1991. These medicines gave doctors new options, and they also raised new questions about how depression works and who might benefit from medication.
When the Term Major Depressive Disorder Was Introduced
The term major depressive disorder was first introduced by clinicians in the United States during the 1970s, and the condition officially became part of the DSM-III, the third edition of the Diagnostic and Statistical Manual of Mental Disorders, in 1980. The history of major depressive disorder therefore includes both a very old human experience and a relatively recent diagnostic name. The DSM gave clinicians a shared set of criteria, which made research, diagnosis, and treatment planning more consistent.
What This History Tells Us Today
Looking back, the history of depression is not a straight line from ignorance to knowledge. It is a series of shifts in how people explained low mood, from spirits and humours to psychology, biology, and social context. Each era kept something useful and left something harmful behind. That is worth remembering when new ideas about mental health appear today: they, too, will be tested, revised, and understood in a wider context.
If you are experiencing persistent low mood, loss of interest, or changes in sleep, appetite, or energy, consider speaking to a qualified mental health professional. Support is available, and a professional can help you understand your options.
Frequently Asked Questions
When was major depressive disorder first described?
Low mood was described in the ancient world under the name melancholia, with written accounts from Mesopotamia in the second millennium B.C.E. The modern term major depressive disorder is much newer, entering the DSM-III in 1980.
What did melancholia mean?
Melancholia comes from the Greek words for black bile. Hippocrates linked it to an excess of black bile, one of the four humours. Over time, the word came to mean a deep, persistent low mood.
When did major depressive disorder enter the DSM?
Major depressive disorder officially became part of the DSM-III in 1980. That edition introduced a shared set of criteria, which helped clinicians and researchers describe the condition in a more consistent way.
How have treatments for depression changed over time?
Treatments have moved from spiritual and harsh physical methods, through asylums and early physical treatments, to talking therapies such as CBT and to antidepressant medicines introduced from the 1950s onwards. Modern care often combines different approaches.
Why does the history of depression matter today?
History shows that ideas about depression change as knowledge grows. Understanding that change can reduce stigma, because it shows that depression is not a personal failing, and it can help people see current treatments as part of a longer search for better care.
Reviewed by Aamir Ranjha