Principal health risks include dehydration and sunburn. Older people and infants are particularly vulnerable to becoming dehydrated, while children are particularly at risk of sunburn.
While the young and the elderly are particularly vulnerable, everyone should take care and stay hydrated and avoid sunburn. People should be aware of the symptoms of dehydration and particularly take care of older people, especially if they are less mobile and struggle to get regular drinks for themselves.
The very young, the elderly and the seriously ill are the groups who are particularly at risk of health problems when the weather is very hot. In particular, very hot weather can make heart and breathing problems worse.