Holding your breath means that you can't vent your grievances or troubles; In a bad mood. Sometimes it also means consciously not breathing, inhaling deeply or shallowly, closing the glottis and trying to exhale.
Ordinary people can practice for 3 to 4 minutes. But be careful to hold your breath during training, because your body is actually in a very anoxic state after training, and your own obvious experience is that you don't feel any discomfort, as if you don't want to breathe at all. So if you don't pay attention or your heart and lung function is not good, you will faint if you don't breathe for a long time, and your will will will be gone.
Excellent freestyle divers and breathless masters always face such life threats, so if you practice holding your breath according to the method, you must be careful not to force yourself to extend the time.
The correct initial practice method is: take a deep breath first, breathe every bite until you can't breathe any more, and then breathe until you can't breathe any more. The whole process should be calm and uniform. It takes about 5 minutes until the brain is slightly dizzy or sleepy, and then this feeling disappears completely. At this time, you start to hold your breath and look at the time.
You will find that even for the first time, it is easy to hold your breath for 1.30 to 2 minutes. If you feel uncomfortable, such as you can't hold on, or your head is a little dizzy, stop at once, don't force it. Just practice several times a day, but the interval is preferably 1 hour, which will soon increase to about 3 points. But if drowsiness and dizziness increase, don't practice any more to avoid brain hypoxia. And don't force yourself to extend the time or increase the amount of training.