Assertiveness Training. How It Works and When to Use It
Assertiveness Training is one of those techniques that sounds simple but works on a deep neurological level. Here's exactly how it works, when to use it, and how to practice it effectively.
By Omar Rantisi, Founder of Therma2 min read
What assertiveness training is
Assertiveness training is a set of skills for communicating your needs, opinions, and boundaries directly and respectfully. It sits between passivity (suppressing your needs) and aggression (overriding others'). You learn to state what you feel and want clearly, to say no, and to stand up for yourself while still respecting the other person.
“The technique doesn't need to be perfect. It needs to be practiced.”
How it works in your nervous system
Passive communication breeds resentment and anxiety because needs go unmet, while aggression damages relationships and trust. Assertiveness resolves both by getting needs on the table honestly, which lowers the chronic stress of suppression and the fallout of hostility. Using clear I-statements keeps the focus on your experience, making it easier for others to hear without defensiveness.
How to practice assertiveness training
Start in a comfortable position. You don't need silence or solitude. just enough awareness to follow the steps.
The practice takes 2–5 minutes. Use it preemptively (before a stressful event) or reactively (during a spike in anxiety or tension). Track the before-and-after effect with a Therma mood check-in to see whether this technique reliably shifts your state.
How to practice
- 1Know what you want
Get clear on your need, feeling, or limit before the conversation. Vagueness invites being talked over.
- 2Use an I-statement
Frame it around your experience: I feel X when Y, and I'd like Z. Avoid blame and accusation.
- 3State it directly and calmly
Say it plainly, in a steady voice. You don't need to over-explain, apologize, or soften it into a question.
- 4Hold your ground respectfully
If pushed, repeat your point calmly and acknowledge their view without abandoning yours.
- 5Notice what shifted
Afterward, check in. Speaking up usually brings relief and self-respect, even when the answer wasn't yes.
Common questions
How quickly does assertiveness training work?
Most people notice a physiological shift within 60–90 seconds. Full nervous system downregulation takes 2–5 minutes. Consistent practice over 2 weeks improves both speed and depth of response.
Can I use assertiveness training during a panic attack?
Yes, though it may take longer to feel the effect when your nervous system is highly activated. Start with the simplest version of the technique and focus on the physical sensations rather than "calming down." The body leads. The mind follows.
Is assertiveness training backed by research?
Yes. The underlying mechanisms are well-documented in clinical psychology and neuroscience. Specific studies vary by technique, but the general principle. engaging the parasympathetic nervous system through structured practice. is one of the most robustly supported interventions in behavioral science.
Related strategies
Sources
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Omar Rantisi
Founder of Therma. UCLA Math + Sociology. Building tools for the space between silence and therapy. Not a therapist. Just someone who needed this to exist.
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