At present, there is no medical regulation about the normal breath-holding time. The length of asphyxia mainly depends on the vital capacity of the body. Usually, the vital capacity and exercise endurance are higher, and the suffocation time is longer. Small vital capacity, poor physique and short suffocation time. Asphyxiation includes landing and pressure. Generally speaking, the average time of suffocation is about 30 seconds to 2 minutes. Some adults have good cardiopulmonary function and can hold their breath for 3 to 4 minutes.
For the average person, holding your breath normally is 1 to 3 minutes. For some professionally trained people, 5 to 10 minutes is enough. Holding your breath is harmful to your health. Don't hold your breath for a long time. When holding your breath, the human body is in a state of hypoxia. Holding your breath can increase your vital capacity to a certain extent, but holding your breath for a long time will have a negative impact on your various functions. Therefore, people who have not received professional training should never hold their breath for too long.