What Is Anhedonia? Symptoms, Causes and Treatment

“Anhedonia can be described from 2 main perspectives,” explains Dr. Fazio.

The first, most commonly used in neuropsychology and psychopathology, concerns the component of the reward system that is primarily affected. From this perspective, there are 2 types:

• consummatory anhedonia, meaning a reduced ability to experience pleasure during an experience or activity;
• anticipatory anhedonia, meaning difficulty imagining or anticipating a future experience as pleasurable or rewarding.

A second way of describing anhedonia is to consider the areas of life in which it occurs. In this case, without a strict distinction between them, it can be classified as social anhedonia, physical anhedonia, sexual anhedonia. These forms can occur individually, overlap, or appear as part of a broader clinical condition.

Social Anhedonia

Social anhedonia is a reduction in pleasure and interest in interpersonal relationships compared with the person’s previous experience.

“It may manifest as less desire to meet other people, have conversations, or share moments of closeness with family and friends. In some cases, the person continues to see others, reply to messages, or participate in social activities, but without the emotional engagement or positive anticipation they experienced in the past. In other cases, progressive social isolation may develop.

Social anhedonia should not be confused with introversion, being reserved, or preferring a small circle of relationships, as these characteristics can be entirely compatible with a satisfying emotional life.”

Physical Anhedonia

Physical anhedonia refers to a reduced ability to experience pleasure from sensory and physical experiences.

It may affect, for example, the enjoyment of food, music, movement, physical contact, nature, walking, exercise, or other small everyday experiences that previously contributed to personal well-being.

“However, it is important not to interpret every change as a sign of anhedonia. The ability to experience pleasure can temporarily decrease for many reasons, including fatigue, stress, worries, physical pain, insomnia, medication use, hormonal changes, medical conditions, or particularly demanding periods of life.

What is clinically significant, therefore, is not an occasional decrease in pleasure, but its persistence over time, its intensity, and its impact on everyday functioning.”

Sexual Anhedonia

Sexual anhedonia refers to a reduced ability to experience sexuality as pleasurable, desirable, or emotionally meaningful.

It can affect different aspects of sexual experience, including desire, anticipation of pleasure, gratification during sexual activity, a sense of intimacy, or pleasure associated with orgasm.

This is a particularly complex area because sexuality is influenced by the interaction of numerous factors:

• mental health;
• physical health conditions;
• relationship dynamics;
• medications;
• hormones;
• personal history;
• life circumstances.

For this reason, sexual anhedonia is not automatically the same as reduced sexual desire or the presence of sexual dysfunction, although these conditions can overlap.

As with other forms of anhedonia, it becomes clinically significant when it represents a persistent change from a person’s usual experience or when it causes personal distress or relationship difficulties.

In these cases, it is important to discuss the issue with a doctor or specialist without embarrassment and to consider the complexity of the possible contributing factors.

“Anhedonia, apathy, and abulia are different conditions, although they can occur at the same time,” emphasizes Dr. Fazio.

Apathy refers to a reduction in emotional engagement and motivation toward everyday activities. People experiencing apathy may describe a decrease in the normal range of emotions and feelings, sometimes to the point of experiencing indifference or emotional detachment that feels unfamiliar compared with their usual way of being.

Abulia, by contrast, involves an impairment of volition, meaning the ability to initiate actions, make decisions, and maintain initiative. A person may feel unable to act, have difficulty starting even simple activities, and experience reduced spontaneity.

Anhedonia, apathy, and abulia can occur together, but the presence of one of these symptoms does not necessarily imply the presence of the others.

The Link Between Anhedonia and Depression

Anhedonia is one of the main symptoms of depression.

In the context of a major depressive episode, diagnosis requires a combination of symptoms lasting for at least 2 weeks and representing a change from the person’s previous level of functioning. Core symptoms include depressed mood and loss of interest or pleasure.

This means that, in some people, depression may primarily manifest as a reduction in interest, motivation, and the ability to experience pleasure, even when sadness is not the most prominent symptom.

Scientific literature shows that anhedonia is common in depressive disorders and may be associated with:

• greater clinical complexity;
• greater impairment in everyday functioning;
• a less complete response to treatment in some cases;
• persistence of certain so-called residual symptoms after mood has improved.

These aspects should not be interpreted as alarming. Anhedonia can improve and deserves specific assessment as part of an appropriate treatment pathway. If sadness decreases after treatment but lack of interest, loss of pleasure, difficulty resuming meaningful activities, or other depressive symptoms persist, it is important to discuss them with your doctor.

Anhedonia can manifest in different ways. Some people describe a loss of pleasure in activities that were previously important to them, such as spending time with family and friends, working, pursuing personal interests, or engaging in hobbies. Others report:

• reduced curiosity;
• feeling as though they are doing things “on autopilot”;
• difficulty imagining that anything could make them feel better.

“In some cases, the difficulty primarily concerns the experience itself: the person continues an activity, meets someone, or does something they previously enjoyed, but no longer experiences the expected sense of reward. In other cases, the phase preceding the experience is more affected, with reduced desire, positive anticipation, or motivation to seek out pleasurable situations.

The causes of anhedonia are complex and multifactorial. A number of factors may contribute, including psychological, biological, environmental, relational, and clinical (medical) factors,” explains the psychiatrist.

From a clinical perspective, anhedonia can occur in several conditions, including:

• mood disorders, such as major depression and depressive episodes in bipolar disorder;
• anxiety disorders;
• post-traumatic stress disorder (PTSD);
• schizophrenia and schizophreniform disorder;
• substance use disorders.

Certain medical conditions, including neurological disorders, chronic pain, sleep disorders, hormonal changes, the use of certain medications, and inflammatory or metabolic conditions, can also influence the mechanisms involved in the experience of pleasure.

For this reason, an appropriate assessment should consider the person as a whole rather than focusing exclusively on a single symptom.

Anhedonia can have a significant impact on everyday life because it changes a person’s relationship with the experiences that normally give meaning, energy, and continuity to daily life.

It can affect many areas, including family and social relationships, self-care, work, study, personal interests, and the ability to make plans for the future.

One of the most common consequences is a progressive reduction in activities and opportunities for engagement. When an experience no longer feels rewarding, a person may begin to avoid it or spend less time on it. This reduces opportunities to experience positive moments and can contribute to a vicious cycle in which everyday life becomes increasingly restricted.

In relationships, anhedonia can create a sense of distance from others, even when emotional bonds remain intact. It can also lead to misunderstandings: from the outside, a person experiencing anhedonia may appear uninterested, cold, unavailable, or lacking initiative. In reality, this is not a voluntary choice, but rather a difficulty experiencing the emotional drive and sense of reward that previously made engagement feel natural.

Work and study can also be affected because of reduced motivation, initiative, and personal satisfaction. It may also become more difficult to maintain habits that support well-being, such as regular physical activity, a balanced diet, or a healthy sleep routine.

Can Anhedonia Be Treated?

Treating anhedonia is complex and cannot be reduced to a single intervention aimed solely at restoring pleasure or motivation.

Pharmacological treatment, as well as any pharmacological augmentation, chronobiological, or neuromodulation strategies, should be determined by a specialist based on a comprehensive assessment of the individual. Important factors include:

• diagnosis;
• overall clinical condition;
• severity of symptoms;
• presence of other psychiatric, psychological, or medical conditions;
• any medications currently being taken;
• individual medical and personal history.

Scientific evidence also indicates that pharmacological treatment alone is not always sufficient to fully restore all the processes involved in the ability to experience pleasure and interest.

“For this reason, when anhedonia is clinically significant, it is important to combine medical treatment with structured psychotherapeutic interventions,” concludes Dr. Fazio. “These include, for example, behavioral activation therapy, an approach that gradually helps rebuild the connection between behavior, positive experiences, and motivation.”

What Does Anhedonia Mean?

Having anhedonia does not mean suddenly and deliberately becoming lazy, cold, or uninterested in other people. Anhedonia is an involuntary change in the ability to experience pleasure, interest, and engagement, which may be associated with emotional distress and frustration about the condition. It is linked to changes in the neurobiological and cognitive processes involved in experiencing reward.

In depression, these changes can also contribute to negative thoughts and a more pessimistic view of the future, creating a cycle that can maintain depressive symptoms and requires an integrated treatment approach.

How Can You Recognize Anhedonia?

An important factor is a change from your usual level of functioning. There is no need to compare yourself with an ideal level of enthusiasm or sociability. What matters is whether the way you experience pleasure, interest, and engagement in everyday activities has changed.

If this condition persists over time, causes distress, or interferes with your personal, social, or professional life, it may be helpful to discuss it with a healthcare professional.

What Is the Difference Between Anhedonia and Depression?

In everyday language, depression may refer either to an emotional state characterized by low mood or to a psychiatric disorder characterized by a combination of different symptoms.

Anhedonia is one possible symptom of depression as a psychiatric disorder and may occur alongside other symptoms, such as changes in sleep or appetite, fatigue, difficulty concentrating, feelings of guilt, psychomotor slowing, or thoughts of death.

However, experiencing anhedonia does not automatically mean that a person has depression. This symptom can also occur in other conditions, including certain anxiety disorders, post-traumatic stress disorder, schizophrenia, substance use disorders, and some medical conditions. For this reason, anhedonia should always be assessed within the context of the person’s overall history.

Are There Tests for Diagnosing Anhedonia?

The assessment of anhedonia is based primarily on a clinical interview. By talking with the patient, a specialist can determine whether the reduction in pleasure, interest, or motivation represents a significant change from their usual functioning, how long it has been present, which areas of life it affects, and what impact it has on everyday life.

There are specific questionnaires developed through scientific research to assess the different components of anhedonia. These tools can support clinical evaluation, but they are not diagnostic tests capable of independently identifying the condition or its causes.

The results should always be interpreted by a specialist, taking into account the person’s history, overall clinical condition, medical conditions, medications, and life circumstances.

I Think I Have Anhedonia, What Should I Do?

The first step is to talk to a healthcare professional. You can start with your primary care physician, who can assess whether other symptoms, medical conditions, or medications may be contributing to the problem and, if necessary, refer you for a specialist evaluation.

If you are already seeing a psychiatrist, psychologist, or psychotherapist, it is important to discuss these changes with them, even when they may seem difficult to describe or explain.