Regular Wim Hof practice can improve your breathing efficiency and potentially increase functional lung capacity over time.
The deep, full breaths stretch and strengthen your respiratory muscles - the diaphragm, intercostals, and accessory breathing muscles. Over time, this can increase the volume of air you can move.
Extended breath holds train your body to tolerate higher CO2 levels, which can improve breathing efficiency during exercise and daily activities. Many practitioners report being less winded during physical activity.
Most people notice improved breath-hold times within 1-2 weeks of regular practice. Deeper improvements to lung function may take several months of consistent practice.
