A man in Brazlil developed what doctors have called pathological generosity, after a stroke damaged parts of his brain causing his behaviour to change.

The 49-year-old began to give away money, food and drinks excessively after a stroke disrupted the part of his brain related to higher thinking and decision making.

Researchers at the Federal University of Rio de Janeiro concluded the man was left with ‘excessive and persistent generosity’ by the stroke which was brought on by bleeding in his brain.