Journal.
Short essays on breath, attention, and the science behind slow paced practice.
Bryan Johnson's pre-sleep practice.
Ten minutes of 4:6 breathing. Why the long exhale matters.
Why one minute is enough.
The case for the smallest possible dose.
How HRV and breathing connect.
A plain-English explainer of heart-rate variability and the breath rate that lifts it.
The science of breath, honestly.
What's well-established, what's promising, and what's been overclaimed.