What Is Cognitive Behavioural Therapy (CBT)? A Complete Guide for Canadians

If you’ve looked into therapy at all, you’ve almost certainly come across the term “CBT.” Cognitive behavioural therapy is the most researched form of psychotherapy in the world — and for good reason. But what does it actually involve, and is it right for you?

At True Therapy in Mississauga, Ontario, CBT is one of the core approaches our therapists use. This guide explains exactly what CBT is, what it treats, what sessions look like, and what the research shows about its effectiveness.

The Core Idea Behind CBT

Cognitive behavioural therapy is built on a straightforward but powerful idea: the way we think affects the way we feel, and the way we feel affects the way we behave. And crucially — our thoughts can be inaccurate.

When we’re anxious, depressed, or struggling, our thinking tends to become distorted in predictable ways: catastrophising, all-or-nothing thinking, mind-reading, personalising. These distortions feel completely true. They’re not.

CBT helps you identify these patterns, examine the evidence for and against them, and develop more balanced, accurate ways of thinking. Over time, this changes how you feel — and what you do.

CBT’s Two Pillars: Cognitive and Behavioural

The Cognitive Component

The “cognitive” part of CBT focuses on identifying and restructuring unhelpful thought patterns — what CBT calls cognitive distortions or automatic negative thoughts. Common examples include:

Catastrophising: “This will be a disaster.” “I’ll never recover.”
All-or-nothing thinking: “I made one mistake, so I’m a failure.”
Mind-reading: “They didn’t reply — they must be angry with me.”
Emotional reasoning: “I feel stupid, therefore I am stupid.”
Overgeneralisation: “This always happens to me.”

Identifying these patterns is the first step. The second is examining whether they’re actually accurate — and practising more balanced alternatives.

The Behavioural Component

The “behavioural” part addresses the things we do — or avoid doing — that maintain distress. Avoidance is the most common behavioural problem in anxiety: the more we avoid what triggers us, the more powerful the trigger becomes.

CBT uses techniques like behavioural activation (for depression) and exposure (for anxiety) to gradually reverse these patterns — rebuilding engagement with life, one small step at a time.

What Does CBT Treat?

CBT has been studied extensively for a wide range of mental health conditions. In Canada, it’s recommended by the Canadian Mental Health Association and practised by registered therapists across Ontario for:

Generalised anxiety disorder
Depression and low mood
Panic disorder and panic attacks
Social anxiety
Obsessive-compulsive disorder (OCD)
Post-traumatic stress disorder (PTSD)
Health anxiety and phobias
Insomnia (CBT-I is the gold standard treatment)
Low self-esteem and self-criticism
Eating disorders

CBT is also used in relationship and couples therapy to address communication patterns, negative interpretation cycles, and avoidance behaviours that create distance.

What Happens in a CBT Session?

CBT is more structured than many forms of therapy — it’s collaborative, goal-oriented, and has a practical, skills-building focus. A typical CBT session at a therapy practice in Ontario might involve:

Check-in: How has the week been? What came up?
Review of between-session work: CBT involves practice outside sessions — keeping thought records, trying exposure exercises, or tracking mood.
Skill-building: Introducing or deepening a specific technique — challenging a thought, practising a relaxation tool, working through an avoidance hierarchy.
Goal review: Checking progress against what you came to therapy to address.
Session summary and homework: Agreeing on a between-session task to practise what was covered.

CBT is collaborative, not prescriptive — you’re not told what to think. You’re helped to examine your own thinking more clearly.

How Effective Is CBT?

CBT has more clinical research behind it than almost any other psychotherapy. Meta-analyses consistently show it to be effective for anxiety, depression, OCD, PTSD, and many other conditions. For anxiety disorders, CBT has response rates of 60–80% — meaning the majority of people who complete a full course experience significant improvement.

Crucially, CBT’s effects tend to last. Unlike medication, which must continue to be taken, CBT teaches skills. Once learned, those skills belong to you — and the data shows they protect against relapse.

CBT vs. Other Therapy Approaches

CBT isn’t the only effective approach — and it isn’t right for every person or every problem. It’s particularly well-suited for people who:

Like a structured, goal-oriented approach
Want to understand why they think and feel the way they do
Are motivated to practise skills between sessions
Are dealing with anxiety, depression, or specific behaviour patterns

It may be less well-suited for people with complex trauma, where a more body-based or relational approach (like somatic therapy or EMDR) may be a better fit. At True Therapy, we draw on multiple modalities and tailor the approach to what each person actually needs — not what we happen to do.

CBT in Mississauga and Online Across Ontario

True Therapy offers CBT-informed individual therapy for adults in Mississauga and across Ontario via secure video. Our therapists are registered with the College of Registered Psychotherapists of Ontario (CRPO) and trained in evidence-based approaches including CBT, ACT, trauma-focused CBT, and integrative methods.

Whether you’re dealing with anxiety, depression, low self-esteem, or relationship difficulties, CBT can give you practical tools that create lasting change — not just temporary relief.

Frequently Asked Questions

How many CBT sessions will I need?

A typical CBT course is 8–20 sessions, depending on the presenting concern and its complexity. Some people see significant improvement in as few as six sessions; others benefit from longer-term work. Your therapist will discuss expected timeframes at the start of treatment.

Is CBT available online in Ontario?

Yes, and research shows online CBT is as effective as in-person for most conditions. True Therapy offers secure video sessions to clients throughout Ontario — including Mississauga, Toronto, Brampton, and beyond.

Is CBT covered by OHIP or insurance in Ontario?

OHIP does not cover registered psychotherapy. However, many workplace benefit plans, private insurance plans, and EAPs cover it. Check your plan for “psychotherapy” or “registered psychotherapist” coverage, and ask your therapist about direct billing.

What’s the difference between CBT and mindfulness therapy?

CBT and mindfulness aren’t mutually exclusive — Mindfulness-Based Cognitive Therapy (MBCT) combines both. Standard CBT focuses more on changing the content of thoughts; mindfulness focuses more on changing your relationship to thoughts. Many Ontario therapists, including those at True Therapy, integrate elements of both.

Do I have to do homework in CBT?

Between-session practice significantly improves CBT outcomes — the research is clear on this. That said, homework is always discussed and agreed upon collaboratively. If something isn’t working, you tell your therapist and you adjust together. It’s never about perfection — it’s about practice.

Take the First Step Toward Lasting Change

CBT has helped millions of people across Canada and around the world change how they think, feel, and live. If you’re struggling with anxiety, depression, or any of the conditions listed above, it might be exactly what you’ve been looking for.

Book a free consultation with True Therapy — and find out whether CBT is the right fit for you.