BOLT ASSESSMENT

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THE ASSESSMENT

Step 01 · Rest

Sit upright and settle for 10 minutes

Breathe normally through your nose. Don't skip this. Measuring straight after activity, caffeine or a stressful call gives you a number that means nothing.

Step 02 · Breathe

A normal breath in, a normal breath out

Through the nose, both ways. Normal means normal. Don't take a deep breath, and don't force the exhale.

Step 03 · Hold

Pinch your nose and start the timer

Hold after the exhale, with your lungs at their natural resting volume.

Step 04 · Stop

Stop at the first definite urge to breathe

Not the maximum you can push to. Stop at the first real signal, or the first involuntary twitch of your breathing muscles. This is where most people get it wrong and record a number that isn't their BOLT score.

Step 05 · Check

Your breathing should return to normal immediately

If you're gasping or need two or three recovery breaths, you held too long. Rest and run it again.

Follow the steps

Accuracy matters more than a big number. Do it the same way every time.

Before you start. Don't do this if you're pregnant, or if you have high blood pressure, a cardiovascular condition, epilepsy, diabetes, or any serious health condition, without checking with your GP first. Stop if you feel unwell. This is a self-assessment tool, not a medical test, and it doesn't diagnose anything.

Breath-hold timer
0.0
SECONDS

Recorded 0.0 seconds

Tip: press Space to start and stop

— YOUR HISTORY

Progress over time

BOLT SCORE · YOUR RESULTS
ALL RESULTS

— WHAT NEXT

A number is a starting point

Measuring tells you where you are. Moving it takes deliberate practice, matched to what your body is actually doing.

That's what the six-week reset does. We take this measurement properly, add your wearable data, and train it against a plan built around your values rather than a generic protocol.

One client moved from 16 seconds to 36 in four weeks.

REMINDER

Measure at the same time of day

First thing in the morning, before coffee, is the most consistent. Comparing a Monday morning score to a Friday evening one tells you very little.

FREQUENCY

Weekly is plenty

Daily measurement mostly records noise. Weekly gives you a trend you can act on.