BBC Morning Live's Dr Ranj Singh has issued a stark warning about a 'silent killer' that may leave no trace after an attack. He discussed TIA mini strokes and pointed out symptoms to watch for that could indicate one is occurring. On the programme, he also shed light on the typical signs of a stroke, which require immediate medical attention. An NHS video aired during the show advised viewers that initial symptoms might include an inability to raise an arm, a lopsided smile, or slurred speech.