Heatstroke can strike in minutes, clots blood, makes the brain swell and can be lethal at any age, says DR MARTIN SCURR. After Dr Mosley's tragic death, the signs everyone must know - and how to protect yourself

Heatstroke can strike in minutes, clots blood, makes the brain swell and can be lethal at any age, says DR MARTIN SCURR. After Dr Mosley's tragic death, the signs everyone must know - and how to protect yourself The tragic death of my friend and colleague Dr Michael Mosley has highlighted how careful we all need to be about the risk of heatstroke – and especially the dangers we can face when away from our usual environment. Heatstroke occurs when …