Your body has a built-in relaxation system. The parasympathetic nervous system — the “rest and digest” counterpart to the stress response’s “fight or flight” — is always available, always capable of being activated, and produces measurable physiological calming when engaged deliberately. The problem is that most people never consciously access it. They manage stress reactively, waiting until they’re overwhelmed before attempting to calm down. Here’s how to use relaxation techniques to calm your nervous system on demand — quickly, reliably, and in any situation.
Understanding the Nervous System You’re Working With
The autonomic nervous system has two main branches: the sympathetic (activation, stress response, fight-or-flight) and the parasympathetic (rest, recovery, restoration). These branches are not simply on-off switches — they exist on a continuous spectrum, and your position on that spectrum at any moment is influenced by your breathing pattern, your muscle tension, your thoughts, your physical environment, and dozens of other inputs.
The good news is that this spectrum is genuinely bidirectional — you can deliberately move toward the parasympathetic end through specific techniques that your nervous system is biologically designed to respond to. You are not passive in the regulation of your own arousal state. You have more physiological control over your nervous system than most people realise.
Technique 1 — Diaphragmatic Breathing (The Foundation)
Slow, diaphragmatic (belly) breathing is the most fundamental and most evidence-backed relaxation technique available. The extended exhale specifically activates the vagus nerve — the primary nerve of the parasympathetic system — producing measurable reductions in heart rate, blood pressure, and cortisol within minutes of practice.
Place one hand on your chest and one on your belly. Breathe in slowly through your nose for a count of four, directing the breath downward so that your belly rises while your chest stays relatively still. Hold briefly, then exhale slowly through your mouth for six to eight counts — longer than the inhale. Repeat for five to ten breath cycles. This basic practice, done consistently and in the right moments, is more reliably effective than many more complex relaxation methods. For acute anxiety applications, the full toolkit is in our guide on how to calm anxiety quickly in the moment.
Technique 2 — Progressive Muscle Relaxation (PMR)
Progressive Muscle Relaxation, developed by Edmund Jacobson in the 1920s and refined extensively since, is a systematic technique of tensing and releasing muscle groups throughout the body in sequence. The tension-release cycle produces a deeper muscular relaxation than passive rest alone — because the brief period of deliberate tension makes the subsequent release more complete, and the contrast between the two states increases body awareness and relaxation depth.
A basic PMR sequence: beginning at the feet, tense each muscle group firmly (not painfully) for five seconds, then release completely and notice the sensation of relaxation for 10–15 seconds before moving to the next group. Work progressively up through the body: feet, calves, thighs, stomach, hands, arms, shoulders, face. A complete session takes 15–20 minutes and produces a deep physical relaxation that is particularly effective for stress-related physical symptoms (tension headaches, tight shoulders, jaw clenching, digestive discomfort). Shorter versions focusing only on the most tension-holding areas (typically shoulders, neck, and jaw) can be completed in five minutes.
Technique 3 — Body Scan Meditation
The body scan is a mindfulness-based relaxation practice — a systematic, non-judgmental sweep of attention through different parts of the body, noticing whatever sensations are present without trying to change them. Unlike PMR (which actively changes muscle tension), the body scan works through awareness — bringing conscious attention to physical sensations in a way that often produces natural release of held tension without deliberate effort.
Lie down comfortably and close your eyes. Beginning at the top of the head (or the feet — either direction works), slowly move your attention through different areas of the body, spending 20–30 seconds in each area simply noticing whatever you feel: warmth, coolness, pressure, tingling, tension, or nothing in particular. When you notice tension, breathe into that area and observe without forcing change — the act of noticing with non-judgmental awareness often produces spontaneous release. A full body scan takes 15–45 minutes; shorter five-minute versions focusing on the most common tension areas are effective for quick mid-day decompression.
Technique 4 — Autogenic Training
Autogenic training is a self-hypnosis-adjacent relaxation technique that uses specific verbal suggestions to produce physiological responses. Developed by Johannes Schultz in the 1930s and well-studied since, it involves mentally repeating phrases that describe sensations of warmth and heaviness in different body parts — phrases that, with practice, begin to produce the physiological states they describe.
Standard autogenic phrases include: “My right arm is heavy” (repeated three times slowly), “My right arm is warm,” “My heartbeat is calm and regular,” “My breathing is slow and regular,” “My stomach is warm,” “My forehead is cool and calm.” The phrases are not affirmations in the motivational sense — they are physiological suggestions that, with consistent practice (typically four to eight weeks of daily use), produce measurable autonomic nervous system changes including reduced heart rate, increased peripheral blood flow (the warmth sensation), and reduced muscle tension. This technique requires more patience to develop than breathing or PMR but produces particularly deep relaxation once established.
Technique 5 — Yoga Nidra (Non-Sleep Deep Rest)
Yoga Nidra — a guided practice of systematic relaxation through body awareness, breath awareness, and visualisation in a comfortable reclined position — has received significant attention in neuroscience research for its ability to produce physiological states resembling deep sleep while maintaining a threshold of conscious awareness. Neuroscientist Andrew Huberman has popularised the “Non-Sleep Deep Rest” framing based on research showing that 20-minute yoga nidra sessions produce similar restoration to 90 minutes of sleep in terms of cognitive performance recovery.
Yoga Nidra is particularly useful for the specific recovery need of mental and physical exhaustion without the time availability for a full sleep or nap. Multiple free guided yoga nidra sessions are available through YouTube channels and apps including Insight Timer and Calm. Twenty minutes of regular yoga nidra practice, incorporated into a rest and recovery routine, produces cumulative benefits for stress resilience, sleep quality, and energy restoration that compound over weeks of consistent use. The broader rest strategy context is in our guide on how to nap strategically to restore energy.
This content is for informational purposes only and is not a substitute for professional medical or mental health advice.
Your Nervous System Knows How to Calm — Here’s How to Activate It
The free 7-Day Anxiety Reset Plan includes guided breathing, body scan, and progressive relaxation practices that build your nervous system regulation skills day by day.