Mental and physical overstrain is called stress.
Stress can cause panic, so try not to stress yourself or your buddy.

You need to be careful in the following cases that cause stress.

■Time stress

It happens when there is a time constraint, such as rushing to prepare for a dive or worrying about the dive time.
Act with plenty of time and try to dive leisurely.

■Work stress

It happens when you need to reach a goal, such as when you are away from the first guide or when you can not take the desired photo.
If you are not confident about your dive plan, be brave and say NO.

■Fatigue and cold stress

It occurs when there is physical fatigue or loss of body temperature, such as swimming against the current for a long time or diving in cold water.
Choose a diving point that suits your physical strength and use a suit that is appropriate for the water temperature.

■Directional stress

If you get lost in a cave or wreck or lose your direction due to poor visibility during night diving, you will feel anxiety and fear.
Don't go inside a cave or wreck without special training.
Night diving should be done in a place where you are well accustomed to daytime diving.