How to crack the cat in my dream

Nightmares are caused by external physical stimulation and internal trauma. External causes: such as quilt covering the nose and mouth, lying on your back, pressing your chest with your hands, or uncoordinated and incorrect sleeping posture; For example, ghosts, foreign bodies press the bed and threaten themselves; So I want to struggle, resist and shout, but my brain is in a state of inhibition, feeling buried in the soil, unable to move, having difficulty breathing, getting stuck in my neck, making no sound and so on. Poor spirit and some physical discomfort, such as chronic tonsillitis, chronic rhinitis and chronic bronchitis, can also cause nightmares. Pay attention! (For reference only)