Certain patients will have certain hallucinations if they eat betel nut in excess, especially those who are exposed to betel nut for the first time will have dizziness, headache, blurred vision in front of their eyes, blurred vision, hallucinations, unsteady walking and action, and in severe cases, severe vertigo accompanied by severe nausea and vomiting. In addition, for patients with a history of coronary heart disease will also have chest tightness, shortness of breath, panic, palpitations, cold sweat, because betel nut contains more alkaloids, mainly betel nut alkaloids, betel nut alkaloids on the nervous system produces a certain degree of stimulation, hallucinations are mainly related to the anesthesia of the nervous system, and usually activate the sympathetic nervous system and the parasympathetic nervous system, the patient will have nausea, severe vomiting symptoms.