According to HealthGuidance, taller people have a greater lung capacity than shorter people. Lung capacity is affected by a range of variables, including height, age, sex, weight and level of physical fitness.
While several variables determine general lung capacity, there are several ways that it can be increased, HealthGuidance further explains. Increasing lung capacity involves making two simple lifestyle changes: quitting smoking and becoming more active.
HealthGuidance states that when cardiovascular workouts are performed, lung capacity begins to increase when the workouts become more challenging. For those who live in low-altitude areas, performing cardiovascular exercises at higher elevations can also increase lung capacity when they return to lower elevations because their bodies become accustomed to the lack of oxygen.