The heat is being blamed for a dramatic rise in the number of 999 ambulance calls - thousands of which are totally unnecessary. It means the service is being stretched the limit and real emergencies could take longer to respond to.
Last weekend there were almost 4,500 calls in our region alone and over 3,000 of those were not life threatening.
Tonight, we spoke to Neil Cook from the ambulance service about the problem.
More top news
Sussex astronaut Tim Peake's space mission will be celebrated with a free exhibition at The Novium Museum in his home city of Chichester.
Emergency rescue teams were at the scene in East Sussex.
Plenty of warm sunshine with the chance of thundery showers later.