Breathing is the one vital sign almost nobody measures at home, yet it changes with fitness, stress, illness and recovery. This test does two simple things with nothing but a timer: it measures how long you can comfortably hold your breath after a normal exhale, and it counts how many breaths you take in a minute at rest. Neither is a lung function test. Both are numbers you can watch over time.
Comfortable breath-hold
After a normal exhale, hold until the first clear urge to breathe. Not a maximum effort.
Breathing rate
Tap once per breath for a minute. The test counts and gives breaths per minute.
A result you can keep
Copy it, or save it in Anpheros Daily next to your heart rate and sleep.
How the test works
- Sit comfortably and breathe normally for a minute. Do not take deep breaths to prepare.
- After a normal exhale, pinch your nose or simply stop breathing, and press Start at the same moment.
- Press Stop at the first clear urge to breathe, the moment you feel the diaphragm or throat wanting to move. This is a comfortable hold, not a record attempt. Your next breath should be calm, not a gasp; if it was a gasp, you held too long and the number is not comparable.
- Rest a minute and repeat up to three times. The best comfortable hold is your result.
- Optional: breathing rate. Sit still, start the one-minute timer and tap once at each breath in. The count is your resting breaths per minute.
What the result means
Comfortable breath-hold time after an exhale is used in breathing-retraining programmes as a rough, repeatable measure of how your body tolerates the rise in carbon dioxide. For many adults at rest it falls somewhere between 15 and 40 seconds; short holds often go with feeling breathless easily, a stuffy nose, or breathing through the mouth, and the time tends to lengthen with fitness and calm breathing. A resting breathing rate for adults is usually between 12 and 20 breaths a minute; children breathe faster.
Three cautions, so the number is used well:
- It is not spirometry. It does not measure lung volume, airflow or oxygen, and it cannot detect or rule out asthma, COPD or any lung disease. Those need a spirometer or a doctor.
- The day matters. A cold, a late night, caffeine, anxiety or a heavy meal change the result. Compare mornings with mornings, at rest.
- Never push. Holding your breath to the limit, in water, while driving, or if you are pregnant, have a heart condition or feel unwell, is not part of this test.
When to see a doctor
See a doctor if you are short of breath at rest or on light effort, if your resting breathing rate is persistently above 20 a minute, if breathing wakes you at night, or if a cough lasts more than three weeks. Chest pain or sudden breathlessness is an emergency.
Keep the result
Copy the result, or save it in Anpheros Daily, the free health record app, where it sits next to your heart rate, sleep and symptoms with the date. Over months the trend is what tells you something, and it can be shared with your doctor with your consent.
Frequently asked questions
Is this a lung function test?
No. Lung function (spirometry) measures how much air you move and how fast, with a calibrated device. This test measures comfortable breath-hold time and breathing rate, which are easy to repeat at home but say nothing about lung volume or airflow.
Can it detect asthma or COPD?
No. If you suspect either, because of wheezing, a long cough or breathlessness, see a doctor; the diagnosis needs spirometry.
Why stop at the first urge, not as long as I can?
A maximum hold depends on willpower and changes from day to day. The first clear urge to breathe is more repeatable, so the number means the same thing next month.
Is the test safe?
A comfortable breath-hold while sitting is safe for healthy adults. Do not do it in water, while driving, or if you are pregnant, have heart or lung disease, or feel unwell. Stop if you feel dizzy.
Is it free?
Yes, with no account. Saving the result in your health record is free too, in the Basic plan of Anpheros Daily.
Does the test use my microphone or camera?
No. It is a timer and a counter; nothing leaves your device unless you save the result in your record.
