Dr Hilary spoke to ITV Daybreak about broadcaster Andrew Marr, who is recovering in hospital after suffering a stroke.
He said that ruptured arteries, which can often cause a stroke can happen at any time, to anyone from any age.
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An aide for a stop-Corbyn candidate says it's now a question of whether Corbyn can get above or below around 48% of first preference votes.
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The Schengen agreement allows free movement through 26 countries meaning migrants can travel through much of Europe unchecked.