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Doctors have identified the first ever case of “Brexit-triggered psychosis”.

The man, aged in his 40s, was admitted to hospital three weeks after the Brexit referendum, in June, 2016, in an “acute psychotic state,” the medics reported.

The Remain voter was described as “confused and very agitated”, with “disordered” thoughts and speech and hearing “voices”.

The patient was also “paranoid” and “delusional” believing people were spying on him and planning to kill him, and radio and TV discussions were targeted at him.

(Image: Gett)

Dr Mohammad Zia Ul Haq Katshu, of Nottingham University, said: “His mental health had deteriorated rapidly following the announcement of the results, with significant concerns about Brexit.

“His wife explained that since the Referendum result he had found it increasingly difficult to come to terms with the nature of political events around him.

“He became increasingly worried about racially motivated incidents and found it difficult to sleep, she said.”

The patient, who wants to remain anonymous, said: “As well as my own anxieties about Brexit, it was also a time when a friend of mine was experiencing immense anxiety about what was happening around him in the US.

(Image: Getty)

“The best way I can describe my experiences of psychosis are as intense periods of accelerated thinking.”

The patient, who has now recovered, added: “I started to believe I was under surveillance. I remember hearing the radio presenters talking about me as if they could see me and knew what I was thinking.”

Dr Katshu said political events can be a “source of significant psychological stress.”