The Science Behind Self-Talk: How to Speak Life Into Your Mental Health
An encouraging word, at a strategic time, spoken by a trusted person, can change a life. I know that is true for me, and how I became a counsellor. A trusted person, a mentor, pastor, counsellor spoke an encouraging word to me at a painful and pivotal part of my life. And it changed the trajectory of my life.
As a therapist, I know the weight of the words I hear from clients and the weight of the words I speak.
As a wife, I have the unique opportunity and closest proximity to speak life into my husband. There is no one else on the planet that will have that type of influence and access to him when he is feeling down, or to lift him up. And the same is true for him to me.
As a mom of four, I know the importance of speaking life into my children to speak into who I see them becoming.
What an honour! And importance to be aware of our own internal self-talk as it flows out to those around us. Speaking something outloud can shift environments.
Words have the power to speak life–or death– over someone, including yourself.
Have you ever caught yourself talking to yourself—out loud? Maybe before a big meeting, during a stressful parenting moment, or standing in front of the mirror before a competition? You’re not alone—and you’re not crazy. In fact, science is confirming what many of us have long felt intuitively: the way we talk to ourselves shapes how we think, feel, and show up in life.
At Alive Counselling, we believe in equipping individuals and families with practical, evidence-based tools—and self-talk is one of the most powerful tools available.
Self-Talk: More Than Just Inner Monologue
Self-talk is how we speak to ourselves—internally or out loud—and it has a profound influence on our mental health, physical health, performance, and relationships. According to research, positive self-talk can increase vitality, improve immune function, reduce stress, enhance cardiovascular health, and even lower the risk of disease. It builds confidence, strengthens resilience, and sustains long-term success.
On the flip side, negative or critical self-talk can increase anxiety, shame, fear, and even contribute to depression or burnout. If you’ve ever said something to yourself that you wouldn’t dare say to a friend, you’ve felt the sting of harmful internal dialogue.
What the Research Says (And Why It Matters in Counselling)
As noted by Dr. Caroline Leaf, cognitive neuroscientist and bestselling author of Switch On Your Brain, what you think every moment literally becomes a physical reality in your brain. She writes:
“What you are thinking every moment of every day becomes a physical reality in your brain and body, which affects your optimal mental and physical health.”
Thoughts are not just fleeting. They change the structure of your brain. This truth is both challenging and empowering—it means we can rewire our thoughts toward hope, healing, and confidence. That’s why in therapy at Alive Counselling, we often help clients become aware of their thought patterns and teach them how to practice intentional self-talk.
Self-Talk in Practice: From the Couch to the Community
In counselling, self-talk shows up in various ways:
- In anxious teens who tell themselves, “I’ll mess this up,” before exams or games. Together, we reframe that into: “I’ve prepared, I can do hard things.”
- In burned-out moms who repeat, “I’m not enough.” We gently explore the origins of that belief and shift toward, “I am doing my best, and that is enough.”
- In high-performance athletes who want to thrive under pressure. We use self-talk strategies to build confidence and bounce back from mistakes.
Ready to Practice Positive Self-Talk?
We’ve partnered with Switch Research, a trusted leader in mental health tools backed by science, to offer a Self-Talk Journal that pairs beautifully with our therapeutic approach.
Choose from 90-day hardcopy or digital Self-Talk Journals designed to help you:
- Build a daily self-talk habit
- Improve your mood and mindset
- Feel more in control and grounded
Use code BARB30 for 30% off your journal purchase:
Get your Self-Talk Journal here
Bonus: Want My Personal Self-Talk Tools?
As a therapist, coach, and author, I’ve written about self-talk and mental skills for athletes, parents, and professionals. My 90-day Self-Talk Journals include:
- Daily pages for affirmations and visualization
- Reflection prompts to help you reframe negative thinking
- Encouragement rooted in personal and professional experience, with practical strategies
- Harness your inner voice to combat anxiety, improve your physical and mental health, and deepen your relationships with others. This 3-part series is a science-backed guide to gain an understanding of and control over the critical voice in your head.
- Over the course of 13 weeks you’ll learn how to utilize powerful tools and techniques, such as Cognitive Behavioral Therapy (CBT) to transform the way you interpret the world.
- A highly optimized 13-week framework for awakening your inner strength
- A weekly focus to keep you on track
- Psychologist-backed strategies you can trust
- Beautiful lay-flat 7.5″ x 9.5″ soft cover format
- Exclusive access to our private FB group to share experiences, tips, and questions.
- Beautiful writing pages to reframe negative thought patterns
- Over 21 hours of therapist-led follow along videos for daily guidance
Browse My Journals & Books Here
Use code BARB30 to get your copy mailed or download it instantly.
Final Word
You are always talking to yourself. The question is: what are you saying?
If your self-talk feels heavy, harsh, or stuck, counselling can help. At Alive Counselling, we’ll walk with you to rewrite your internal script—so your self-talk becomes a source of strength, not stress.