Slow breathing lengthens exhalation to improve HRV markers
A systematic look at paced-breathing trials and heart-rate variability outcomes.
Science of Yoga distils decades of clinical and neuroscience research into clear, accessible guidance — so you can practice with intention, confidence, and evidence on your side.
For thousands of years, yoga has been described in the language of tradition. Today it is also described in the language of randomised controlled trials, meta-analyses, and brain-imaging studies.
From measurable changes in heart-rate variability and cortisol to structural shifts in the brain's stress and attention networks, the evidence base for yoga keeps growing. We read the studies so you don't have to — and turn them into practices you can use.
More About Our Approach
Every claim on this site is checked against the published literature and flagged with its source.
We look at how yoga works — breath, posture, attention, movement — not just whether it works.
Scientific summaries connect to step-by-step practices you can try today.
We report what the research does and doesn't show — nuance matters.
A snapshot of findings from our evidence library, with full citations in the Research section.
Regular practice is associated with a more measured cortisol response to stress and improved heart-rate variability.
Read more →Cross-sectional and longitudinal imaging studies link yoga practice with preserved grey matter in attention-related regions.
Read more →Meta-analyses show moderate improvements in sleep quality scores, especially among older adults and those with insomnia.
Read more →Systematic reviews find meaningful gains in lower-body strength, balance and flexibility from twice-weekly practice.
Read more →An 8-week, science-informed program combining breathwork, restorative postures and nervous-system education.
Explore program →Progressive strength, balance and flexibility work grounded in the sports-science literature on yoga.
Explore program →Evening sequences and breathing practices matched to the sleep research — wind down the way the evidence suggests.
Explore courses →A systematic look at paced-breathing trials and heart-rate variability outcomes.
What three recent trials found about pre-bedtime practice and falling asleep faster.
Comparing cortisol trajectories across passive and active recovery sessions.
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