Many people think that free diving does not use compressed gas, so there is no problem of decompression sickness, especially the depth of our leisure level. Before giving an explanation, you must first tell Your conclusion:

Free diving can cause decompression sickness (DCS). Generally, players of one or twenty meters will also encounter decompression problems. Don't doubt that this is a personal problem that you and I must pay great attention to!

There is a scientific name for decompression sickness in free diving: "TARAVANA"

The origin of this scientific name is the name of a small island in Polynesia. The local habitual habitual dive to the bottom of the sea to obtain food or pearls. Because they frequently dive, they have often suffered from diving diseases for a long time. The attention of experts, because the residents on the island are used to diving by hand. This kind of diving was originally thought to not cause decompression sickness. After research, it was found that this is not the case. Free diving people also need to face this problem like scuba diving .