Stay safe in the soaring temperatures

25 June 2020
Most of us welcome hot weather, but when it's too hot for too long, there are health risks.

Why is a heatwave a problem?

The main risks posed by a heatwave are: 

  • not having enough water (dehydration) 
  • overheating, which can make symptoms worse for people who already have problems with their heart or breathing
  • heat exhaustion and heatstroke

Who's most at risk?

A heatwave can affect anyone, but the most vulnerable people are:

  • older people, especially those over 75
  • babies and young children
  • people with a serious long-term condition, especially heart or breathing problems
  • people with mobility problems – for example, people with Parkinson's disease or who have had a stroke
  • people with serious mental health problems
  • people on certain medicines, including those that affect sweating and temperature control
  • people who misuse alcohol or drugs
  • people who are physically active – for example, labourers or those doing sports

Read more about heatwave alert levels on NHS.uk and about how the current COVID-19 pandemic will amplify the health risks from heat on PHE.uk.