Sunburn and heat rash—who isn’t familiar with these wretched symptoms of a long drawn-out sunbath? These and other health risks of summer heat can very often be avoided if certain preventative measures are taken. Children and older people in particular should not be exposed to the sun any longer than necessary. It also holds for the rest of population that one must drink plenty of liquids and avoid strenuous physical activity. Should there be health damage despite observing these measures, for example sunstroke or heatstroke, a physician should be consulted.  More advice and information on caring for the elderly at home can be read in the new ⁠UBA⁠ background paper.  We also present various heat warning systems that may help to prepare for the summer hot season.