What is IFS Therapy (Internal Family Systems)? A guide in plain English

Internal Family Systems (IFS) therapy was developed by the American psychotherapist Richard C. Schwartz. It starts from a simple yet deeply transformative idea: each of us has an inner world made up of different parts. There is a part that criticises, another that is afraid, another that tries to please, another that wants to give up, and so on. All of them are part of us.

According to the IFS model, these parts are not the problem. On the contrary, they developed over the course of our lives to help us cope with difficult situations. Suffering arises when some of them take on roles that are too extreme, start running our lives, and we lose the ability to respond to situations with freedom, balance and clarity.

Parts

Have you ever noticed how, at certain moments, one part of you wants to move forward while another hesitates? Or how one part longs to rest while another insists you have not done enough yet?

In IFS, these parts are not mere metaphors. They are organised ways of feeling, thinking and acting that took shape over the course of our history. Each one has a positive intention, even when its behaviour causes us suffering. Rather than fighting these parts, IFS seeks to understand them and help them let go of the extreme roles they once needed to take on.

Protective Parts

Many of our parts have the mission of protecting us from old emotional pain.

Some try to anticipate suffering and ward it off through control, perfectionism, the need to please or constant vigilance. Others step in once the pain is already present, turning, for example, to withdrawal, to excess — whether of food, work, shopping or social media — or to emotional outbursts to ease the suffering.

Although these strategies sometimes create problems of their own, in IFS they are met with respect and curiosity. Instead of asking "Why do you do this?", we ask: "What is this part trying to protect you from?"

The Self

One of the most original ideas in the IFS model is the existence of the Self, a healthy core that each of us possesses, whatever our life history.

The Self is characterised by qualities such as calm, curiosity, compassion, clarity, courage and confidence. When it is present, it can listen to every part without judging it, understanding each part's intentions and helping it find healthier ways to play its role.

The aim of IFS therapy is not to eliminate parts of the personality. It is to strengthen the leadership of the Self so that each part can stop living in a permanent state of alert and recover its natural potential.

At first glance, talking about "parts" may sound strange. In practice, however, the experience tends to feel quite natural.

Throughout the session, the therapist helps to identify which part is present in that moment, what its fears are, what role it plays and how it tries to protect the person. The pace is always respected, without forcing experiences the inner system is not yet ready for.

As the parts come to feel trust, it becomes possible to understand their stories, ease the emotional burdens they carry and foster a more harmonious inner relationship. Many people describe this process as an experience of greater peace, integration and inner freedom.

IFS therapy has been used with a wide range of psychological difficulties, including single-incident and complex trauma, anxiety, depression, persistent self-criticism, relationship difficulties, attachment-related problems and the consequences of adverse childhood experiences.

Over recent decades, the model developed by Richard Schwartz has gathered a growing body of scientific studies and earned international recognition among psychotherapists and researchers. Although no approach suits everyone or offers a magic solution, the available research suggests that IFS can be an effective intervention for many people, particularly when integrated into a psychotherapeutic process led by a properly trained professional.

Isabel Fernandes is a psychologist (professional licence no. 26660 from the OPP — Ordem dos Psicólogos Portugueses, the Portuguese Psychologists' Association), a psychotherapist in training with the Sociedade Portuguesa de Psicoterapias Construtivistas, holds Level 3 training from the IFS Institute — the most advanced level of the model's structured training — and has further training in mindfulness, self-compassion and trauma. She works in Setúbal and online.