Vladimir Putin's decision to avoid almost all contact since the start of the pandemic has brought on "signs of psychosis and a personality disorder" a leading psychotherapist believes.
The reclusive Russian dictator has been self-isolating since March 2020, only making occasional appearances.
It may have caused "irreversible" damage, the expert says, and the move to cut-off could be a factor in his decision to invade Ukraine, he told Express.co.uk.