The 90-Minute Nasal Cycle: What Ancient Yoga Texts Got Right
Modern research now confirms what the Shiva Svarodaya documented millennia ago — nasal dominance shifts every 90 minutes and drives profound changes in brain and body.
Introducing SwaraFlow — the world's first device to measure continuous nasal airflow, delivering personalized pranayama powered by real-time biofeedback.
“Where 5,000 years of ancient pranayama wisdom
meets cutting-edge nasal biofeedback science.”
Dhyanly was founded with a singular mission — to make the profound benefits of pranayama measurable, personalized, and accessible for athletes, executives, and wellness seekers everywhere.
Introducing
The world's first device to measure continuous nasal airflow — quantifying the breath that yogis have studied for millennia.
SwaraFlow
By Dhyanly
Real-time Biofeedback
Active Monitoring
SwaraFlow continuously monitors your nasal airflow — the same patterns Ayurvedic sages called “svara” — and translates them into actionable, personalized pranayama protocols.
Measures dominant nostril airflow continuously
AI-powered pattern recognition and personalization
Tracks HRV, flow rate, cycle timing and 100+ parameters
Real-time biofeedback during every practice session
0.1ms
Measurement resolution
Continuous real-time sensing
100+
Breath parameters
Tracked simultaneously
5,000+
Years of science
Svara validated by modern research
Simple · Powerful
Three steps. Infinite possibilities.
Place SwaraFlow comfortably. Our ultra-sensitive piezoelectric sensors begin continuous nasal airflow measurement instantly — no calibration needed.
Practice any pranayama with real-time biofeedback. Visualize your breath patterns live — know exactly which nostril is dominant and by how much.
Receive AI-personalized breathwork recommendations based on your unique patterns. Track progress over time. Transform mental and physical performance.
The Science
Svara science — documented over 5,000 years ago in the Shiva Svarodaya — teaches that nasal dominance cycles every 90–120 minutes, profoundly shaping cognitive, physical, and emotional states.
Modern research validates this: the nasal cycle directly influences brain hemisphere activity, cortisol levels, immune function, and emotional regulation. SwaraFlow makes this measurable for the first time.
+34%
HRV Improvement
Average over 8 weeks of practice
−41%
Cortisol Levels
Measurable stress reduction
+56%
Sleep Quality
PSQ score improvement
+28%
Cognitive Focus
Attention & working memory
Live visualization — alternates every 90–120 min
Left Nostril (Ida)
Lunar · Calm · Parasympathetic
Right Nostril (Pingala)
Solar · Active · Sympathetic
Sushumna (Both equal)
Balance · Transcendence
The Nasal Cycle (Svara)Continuous switching of dominant nostril modulates brain hemispheric activity, autonomic nervous system balance, digestion, and emotional state.
The App Ecosystem
Each app works standalone — and becomes significantly more powerful when paired with SwaraFlow biofeedback.
Your mental health. Measured. Understood.
The flagship Dhyanly app. Combines clinically validated mental health screening (GAD-7, PHQ-9) with Ayurvedic Prakriti assessment — giving you a 360° view of your mental wellbeing.
Vedic healing. Quantified.
A comprehensive pranayama and Vedic therapy platform with guided sessions, mantra therapy, and progress tracking — fully integrated with SwaraFlow biofeedback.
Sleep deeper. Heal faster.
AI-voiced yoga nidra with personalized sankalpa scripts, binaural audio, and sleep-cycle optimization — clinically designed to get you into deep theta states faster.
Know your constitution. Transform your health.
AI-powered Ayurvedic constitution analysis using facial feature recognition and deep questionnaires — delivering personalized diet, lifestyle, and breathwork recommendations.
Pair every app with SwaraFlow
Add biofeedback to any app — unlock personalization that no digital tool alone can offer.
Use Cases
Backed by science. Rooted in tradition.
Performance Enhancement
Elite athletes and executives use structured pranayama to optimize cognitive function, manage pre-competition anxiety, and accelerate recovery. SwaraFlow gives you the biofeedback to know which breath is right, right now.
Deep Sleep
Specific pranayama sequences — long, slow exhalation through the left nostril — activate the parasympathetic nervous system, dramatically improving sleep onset and deep-sleep architecture.
Stress & Anxiety
Real-time biofeedback during pranayama shows you exactly how breath modulates your nervous system — making stress management measurable, trackable, and progressively more effective.
Resources
Modern research now confirms what the Shiva Svarodaya documented millennia ago — nasal dominance shifts every 90 minutes and drives profound changes in brain and body.
Heart Rate Variability is one of the most reliable markers of autonomic nervous system health. Here's how specific pranayama techniques measurably improve HRV within weeks.
Nadi Shodhana is the most researched pranayama in modern literature. A deep dive into what happens neurologically when you alternate your breath.
Common Questions
SwaraFlow is the world's first wearable device that continuously measures nasal airflow in real time. Developed by YogaXBiofeedback Pvt. Limited under the Dhyanly brand, it quantifies which nostril is dominant at any given moment and by how much — enabling personalized, biofeedback-guided pranayama and breathwork practices.
Stay Connected
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