What's a good breath-hold time?

Most untrained adults hold 30–60 seconds comfortably after a normal inhale. Smokers and people with low cardio fitness often land under 25 seconds. To measure your baseline CO₂ sensitivity without pushing to exhaustion, you can also test your BOLT score (Body Oxygen Level Test).

How to test fairly: sit down, breathe normally through your nose for 60 seconds, take one calm ~80% inhale (not a huge gasp), hold, and stop the timer at the first strong urge to breathe — not at the point of panic. Test at the same time of day and log three attempts with 2–3 minutes of rest; keep the middle number as your baseline.

Why age matters less than you expect: lung function does decline gradually after about 30, but hold time is dominated by CO₂ tolerance, relaxation, and technique. A fit 55-year-old who trains will usually beat an inactive 25-year-old. Compare yourself with your own trend, not with a stranger's screenshot.

Full-lung vs empty-lung: a full-lung hold (one inhale, then hold) gives you an air buffer and is the number most people mean by 'how long can you hold your breath'. An empty-lung hold removes that buffer and tests pure CO₂ tolerance — expect roughly half the seconds. Both are fair tests; just never compare one against the other.

What actually moves the number: CO₂ tables two or three times a week, slow nasal breathing, cardio, and better sleep. Most beginners add 10–20 seconds in two weeks by training relaxation rather than by trying harder. Chasing a personal best every day is the fastest way to stall.

Trained freedivers exceed 3 minutes, but that takes months of CO₂-tolerance training — not something to chase in one session. Static apnea records are set with oxygen and months of preparation, and never alone in water.

Use this test as a fun benchmark, not a medical diagnosis. If you're consistently under 20 seconds and feel breathless day-to-day, talk to a clinician.