Box Breathing (Sama Vritti)
A breathing exercise with four equal steps: inhale, hold, exhale and hold, usually for a count of 4 each.
Box breathing (sama vritti) is a breathing exercise with four equal steps: inhale through your nose for 4, hold for 4, exhale for 4, hold for 4. Cleveland Clinic suggests 3 to 4 rounds once or twice a day. Use 3-second counts if 4 feels like a strain, and shorten or skip the holds if they make you anxious.
| Sanskrit name | Sama Vritti |
|---|---|
| Category | Breathing |
| Difficulty | Beginner |
| Primary benefit | Slows and evens out your breathing with simple counts |
| Breathing | Inhale 4, hold 4, exhale 4, hold 4 (seconds); use 3s, or shorter holds, if 4 feels like a strain |
| Safe for seniors | Yes |
| Contraindications | Breath holds make you anxious (shorten them or set them to 0), Pregnancy (ask your provider before breath holding), Uncontrolled high blood pressure or a heart condition (ask your doctor first), Epilepsy or panic disorder (ask your doctor first), Recent chest, abdominal or eye surgery |
What is Box Breathing?
Box breathing is a counted breathing exercise with four equal parts: breathe in, hold, breathe out, hold. Picture tracing the four sides of a square, one side per step. It's also called square breathing or 4×4 breathing, and in yoga, breathing with equal counts is called sama vritti (sama means equal).
The counts slow your breathing down and give your attention something simple to follow. The standard count is 4 seconds per step, so one box takes about 16 seconds. There's nothing special about 4. If it feels like a strain, use 3, and if the holds make you uneasy, shorten them to 1 or 2 seconds or drop them. Cleveland Clinic's advice is to stay at your comfort level and breathe very gently, without straining.
The research is thinner than its popularity suggests. In a 2023 Stanford study of 108 adults who practiced 5 minutes a day for a month, the box breathing group improved, but not significantly more than a group doing mindfulness meditation. Counting gives your mind a job, which may be part of why it feels steadying. If stress or anxiety affects your daily life, breathing exercises can go alongside care from a health care provider, not replace it.
In practice, people use it before a stressful task, at a desk, or as a short focus break. Sit or lie down while you learn it, breathe through your nose, and keep each breath soft rather than big. Two to five minutes is plenty. If you feel dizzy, tingly or short of breath, stop and go back to quiet nose breathing.
Step-by-step instructions
- Sit upright or lie down, and let your shoulders relax.
- Breathe out slowly to empty your lungs.
- Inhale gently through your nose for a count of 4.
- Hold your breath for 4, without clenching your throat or shoulders.
- Exhale slowly for 4.
- Hold for 4 with your lungs empty. That's one box.
- Repeat for 3 to 4 rounds, or 2 to 5 minutes, then return to normal breathing.
Tips & modifications
- Beginner: Sit or lie down while you practice breath holds, especially the first few times.
- Beginner: Trace a square with your eyes or a finger, one side per step. The site's square breathing pacer starts at 4-4-4-4 if you'd like a visual timer.
- Common mistake: Taking big, forceful breaths. Slow doesn't mean big; keep each inhale soft so you don't feel lightheaded.
- Easier or harder: If 4 counts feel like a strain, use 3. If the holds make you uneasy, shorten them to 1 or 2 seconds or set them to 0.
- Safety: Stop if you feel dizzy, tingly or short of breath, and return to quiet nose breathing. Next time use shorter counts.
Safety
If you have any of the contraindications listed above, or a health condition, talk to your doctor before practicing. Stop if you feel sharp pain, dizziness, or numbness. Use props and modifications as needed, especially if you are 50+ or new to yoga.
Sources
- Cleveland Clinic: How Box Breathing Can Help You Destress (opens in a new tab)
- Balban et al., Brief structured respiration practices enhance mood and reduce physiological arousal (Cell Reports Medicine, 2023) (opens in a new tab)
- NCCIH: Relaxation Techniques: What You Need To Know (opens in a new tab)