The heat wave literally puts Europe in its headlock. What is unpleasant for healthy people can cause serious problems for people with heart diseases. Keeping the body temperature on a steady level stresses the heart. A drop in blood pressure caused by the combination of an increased blood flow to the skin and dehydration, may lead to dizziness or falls.  
But how to beat the heat?
•    Take it easy, shift physical activities to the evening or early morning.
•    Drink enough but avoid sugary soda or fruit juices, caffeinated beverages or alcohol.
•    Eat light and smaller meals (e.g. soups, salads or fruits).
•    Try to cool down either in an air-conditioned surrounding or with a cool shower/bath or with an ice pack.