For an ordinary person who has not been trained, the maximum breath holding time is about 30 seconds to 50 seconds, and it will be difficult to sustain it any longer.

But after training, people can hold their breath for an astonishing length!

There is a small island in the Eastern Ocean. The aborigines on the island rely on the sea to live. These people are like mermaids, who can hold their breath in the sea for a long time.

Most people can hold their breath for about twenty minutes, some may be able to hold their breath for three

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