Holly: My brain just wasn't functioning
Holly, 21, was running the Brighton Marathon when she suffered from heatstroke and collapsed after 27km.
Over half of England can’t tell heat stroke from heat exhaustion
St John Ambulance launches summer campaign to boost public knowledge of heat-related first aid.
First Aid for London
Londoners - come and learn first aid this St John's Day
St John launches mental health campaign aimed at builders
7 in 10 builders say ‘too difficult’ to talk to a depressed colleague
