Most people think yoga is stretching. A mat, some poses, a final relaxation. Something to do on weekends when there is time. Calming, perhaps, but not clinical. Not mechanistic. Not something that changes the biology of stress in a measurable, lasting way.
Dr. Kaushal, holistic healer and author of Anchor and Flow, has spent over a decade and a half teaching yoga across 150 plus retreats in India, Southeast Asia, and Europe. His position, informed both by Patanjali’s ancient framework and by contemporary neuroscience, is precise: yoga does not manage stress. It rewires the system that generates the stress response in the first place.
That distinction is the entire premise of Anchor and Flow.
What is actually happening in the body during chronic stress:
- Cortisol and adrenaline are useful in short bursts. The problem begins when they remain elevated all day and spike again at night.
- The nervous system gets stuck in sympathetic dominance, the fight-or-flight state, treating a difficult email or an unfinished to-do list with the same physiological urgency as a physical danger.
- Shoulders stiffen. Digestion slows. Sugar cravings increase. Sleep becomes shallow. A deep yawn arrives every afternoon and is pushed aside with tea.
- Over months, cortisol may rise then crash. Mood becomes brittle. Concentration slips. Small irritations start to look like personality flaws.
None of this is character. All of it is physiology. And physiology can be retrained.
The neurochemical changes yoga produces, explained by Dr. Kaushal:
Serotonin and the safety signal: When the body moves through mindful postures, holds a stretch with ease, and breathes rhythmically, it provides the brain the conditions it prefers for serotonin activity. The inner monologue grows less harsh. The world does not turn rosy, but the edges soften and daily life becomes more navigable.
GABA and the brake pedal: GABA is the neurochemical that signals “enough arousal, return to base.” Many chronically stressed women have plenty of accelerator and not enough brake. Slow breathing with a relaxed belly, an exhale lasting a beat longer than the inhale, increases that braking effect directly. Muscles release. Thoughts stop racing. The chest stops pounding at small triggers.
The vagus nerve and the breath switch: Breath is the only autonomic function the body can consciously control. Shallow, rapid breaths signal the system to prepare for action. Deep, even breaths through the nose signal recovery. The diaphragm, when trained to move like a steady pump, sends calming signals up the vagus nerve, the main highway linking chest, gut, and brain. The practical results are fewer jolts of alarm, easier digestion, and a mind that can focus for longer without exhaustion.
Cortisol and the daily curve: With repeated yoga practice, morning cortisol rises as it should and then tapers across the day rather than spiking at 9 pm. People report that their shoulders do not climb toward their ears by evening. Sleep arrives without negotiation.
Adrenaline and the speed of response: Adrenaline is designed for sprints. When too many daily situations trigger it, the body grows jumpy. Simple flows that link breath and movement use up leftover adrenaline cleanly and then teach the body to idle at a lower speed. Over time, surprise jolts reduce. The notification on the phone stops feeling like an emergency.
What Dr. Kaushal’s research revealed across three distinct populations:
His PhD research conducted in Delhi NCR worked with homemakers, working professionals, and women in correctional facilities, three groups with radically different outer circumstances but remarkably similar inner presentations: stress, depression, emotional depletion, and a nervous system that had forgotten it could rest.
Across all three groups, the yoga intervention produced measurable improvements in mood, sleep quality, emotional regulation, and a renewed sense of inner agency. The mechanism was the same regardless of the outer environment: teach the nervous system a different response to pressure, and the mind follows.
The two stories Dr. Kaushal carries from this research:
A lecturer who dreaded afternoons because her heart would race during classes began five minutes of nasal breathing before each session and two minutes of supported forward fold afterward. Within two weeks she said, “My pulse still rises when I start, but it settles on its own now.”
A young mother whose evenings felt like a second shift started ten minutes of slow stretches and four rounds of alternate nostril breathing after putting her child to bed. She said, “I used to collapse into scrolling. Now I collapse into rest. The difference is real.”
These are not dramatic transformations. They are adjustments in baseline physiology that accumulate into steadier days. The body learns that it can regulate itself. That learning is power.
Anchor and Flow: The Science and Soul of Women’s Wellness Through Yoga is available on Amazon, Flipkart, Kindle, and Google Books.
Buy now and understand the biology your practice can change.
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