Ghost pressing bed is a scientific phenomenon. Regarding the medical explanation, the ghost bed is called a nightmare in medicine. Some theories think that the ghost bed is caused by the uncoordinated coordination of various parts of the brain, while others think that the ghost bed is caused by the fact that the frontal lobe is awake, but the cerebellum is not awake and unable to move.
If you encounter a ghost pressing the bed, clench your fist and hold your thumb with the other four fingers, you can wake up quickly. Especially when you fall asleep, you should form a habit and make unremitting efforts to gradually reduce the onset of nightmares. When a nightmare happens, your hands and feet can't move, but you can try to twist your head, grind your teeth or speed up your breathing, which can make you wake up from the nightmare as soon as possible.