France warns even young people's health at risk as Europe's heatwave shifts east

France's health minister said "young people are also suffering from cardiac arrests". The ambulance service in Paris had seen four times more cardiac arrests than normal over a 24-hour period, said Rist, while stressing there were no confirmed figures for the number of deaths linked to the heatwave.Paris mayor Emmanuel Grégoire said the mortality rate was on the rise in the capital."We must not believe we are invulnerable," he told French TV. "I am thinking especially about the youth... At about 19:30 last night... I saw 100 or so joggers on the street. Frankly, that's irresponsible.""It's fine to take a couple of days off from exercising," he added.Stéphanie Rist said everyone had to adjust their personal activity to the high temperatures: "Even if you are young and in good health with no underlying medical issues, this heat will affect you too."Even cycling came with risks, she warned, from high temperatures that lasted a week, as people would start feeling faint and might fall and even end up in hospital.In a bid to ease pressure on the capital's hospitals, Parisians will also be restricted from drinking alcohol in public from noon on Friday until 07:00 on Saturday. Licensed bars and restaurants are exempt.Bans on takeaway alcohol sales will be in effect from 18:00 on Friday until 07:00 on Saturday. Both restrictions will also be in place during the same hours from Saturday to Sunday.Speaking to local media, Paris police chief Patrice Faure said: "We are reaching a saturation point in hospital facilities."Weekend temperatures could also hit 40C in the Austrian capital Vienna, and a code red comes into effect in eight out of 12 provinces in the Netherlands from midnight on Thursday local time, with the chance of 39C in localised eastern areas.The UK's Met Office has extended its red extreme temperatures warning until Friday evening, for parts of London and south-eastern England.In Italy, Florence's Uffizi museum has halted ticket sales until 28 June, and only those with a previous booking will be allowed in. Management said the air conditioning system could not cope with the high flow of visitors and the extreme temperatures, which reached 32C inside the museum on Wednesday.Italians have been experiencing high temperatures since the start of this week - but the peak of the heat is expected for Monday, when 40C are expected in various northern regions.Night-time temperatures in those areas might not drop below 29C."Gone are last century's June days of 32C daytime temperatures and cool 17C nights," forecaster Lorenzo Tedici told Italian media. "We have become so accustomed to excess that, paradoxically, today we welcome a forecast of 34C as good news."