Please choose the correct ending to complete the given sentence: Health: [header] How to wake up from a bad dream [title] Do a " reality check. [step] " the key to forcing yourself to wake up during a troubled dream is, in the first place, to realize that it is not real-that it is a dream. This is called becoming " lucid.

Ending1: " lucid dreaming requires two things: dreaming and recognizing the fact that you are dreaming. [substeps] The best technique to achieve this is to look, listen, and pay attention to details. Ending2: " this is when you start to worry about what will happen next. [substeps] In a dream, it makes sense to start thinking about what the gods or idols of the universe are doing. Ending3: " hypnosis is used as one of a number of techniques designed to help you stay lucid during a dream. Some of the more notable are : [substeps] Feeling tired. Ending4: " you will find that you are more lucid if you lie in bed and " wakeboard " get up. By getting up, you help fight the memories and emotions that take over.

Answer format: ending1/ending2/ending3/ending4