Nervous System
Regulation and reset — how breath and stillness shift the body out of stress.
CO2 Tolerance Test: What Kumbhaka Was Actually Training
A breath-hold timer scores how loudly your body objects to carbon dioxide. The classical retention ratios were counting something else entirely.
6 min readbreathworkप्राणायामAncient Indian Breathing Techniques: The Pranayama Map
Classical India named eight breath practices and sorted them by what they do to you. Six are still taught. Two were quietly dropped.
7 min readbreathworkप्राणायामHolotropic Breathwork: Why 30 Minutes Curls Your Hands
Most people who breathe this way feel their hands lock. A 2025 study measured the carbon dioxide drop that causes it, and what else that drop opens.
7 min readbreathworkअग्निसारAgnisar Pranayama: What Happens After 100 Repetitions?
A classical manual prescribes one hundred abdominal pumps on an empty breath. In 2022 an ultrasound probe found the practice sends blood toward the gut.
6 min readbreathworkशीतलीSitali Pranayama: The Cooling Breath and How It Works
The one classical breath practised through the mouth. Three months of it lowered blood pressure in a randomised trial, and the coolness on your tongue is real evaporation.
7 min readbreathworkसूर्यभेदनSurya Bhedana: Does Right-Nostril Breathing Wake You Up?
One of your nostrils is doing most of the work right now, and in a few hours it will swap. The classical practice built on that fact was better than the explanation attached to it.
7 min readbreathworkप्राणायामBreathwork vs Pranayama: What Actually Separates Them?
Two practices, one organ, opposite chemistry. The direction carbon dioxide moves is what separates modern breathwork from classical pranayama.
6 min readbreathworkकपालभातिKapalabhati Breathing: Why Fast Breath Alters Your Mind
Rapid breathing does something measurable to the brain's blood supply. The instruments agree on the effect. They have not yet agreed on the cause.
7 min readritualवातकालWaking Up at 3am: Is It Vata Kala or Hyperarousal?
Sleep thins in the last third of the night, and the classical texts noticed. The liver-detox story attached to that hour did not come from them.
6 min readbreathworkचन्द्रभेदनChandra Bhedana: Left-Nostril Breathing for Sleep
The classical manuals name the heating breath and never name its cooling mirror. The trials suggest the mirror works, on the timescale of a practice rather than a night.
7 min readritualरात्रिचर्याRatricharya: The Ayurvedic Evening Routine for Sleep
Ayurveda spelled out a four-hour wind-down from dusk to sleep. Sleep science arrived at most of the same steps, and can now say which ones matter.
9 min readmeditationअन्तरायRelaxation-Induced Anxiety: The Antaraya Patanjali Named
Meditation that leaves you more anxious than you started is a documented effect with a name, a 1983 paper, and a line in the Yoga Sutra that reads like a symptom list.
7 min readbreathworkनाडीशोधनNadi Shodhana: The 5-Minute Nervous-System Reset
Alternate nostril breathing is the oldest, gentlest breath in the yogic toolkit. You close one nostril, then the other, and the nervous system slowly comes back into balance.
6 min readmeditationसंस्कारCrying During Meditation: Why It Happens and What It Means
The tears that arrive in stillness are not a sign the practice is failing. They are often the clearest sign it is finally working.
7 min readOne of these each morning.
The reading is the doorway; the practice itself lives in the app. Guided breath, meditation and journaling — no threads, no streaks, no notifications you’ll resent.