Mervyn Kohler, special adviser to charity Age UK has told ITV London that heat can be "stressful" for older people, as scorching temperature continue across the UK.
Mr Kohler said: "For God's sake, let's enjoy it, you have to act sensibly and responsibly, and enjoy the warm weather".
More top news
Celebrations to mark St George's Day have started in Trafalgar Square with feasts and tea to be found in abundance.
People took to the streets of Brixton today to march against what they see as the 'gentrification' of the area.
A mother has issued an appeal for information after her "quiet" son who had a "lovely smile" was found dead in the Thames.