A severe heat wave across much of Europe has renewed warnings that extreme temperatures especially endanger the health of children and older adults. While public advice often targets seniors, the recent deaths of two young children in a parked car in France highlighted risks to the very young as well. Researchers note that human-driven climate change is increasing the frequency, strength and duration of such heat events, with this week potentially matching the deadly 2003 episode that killed around 70,000 people continent-wide. Both age groups have reduced ability to control body temperature and sweat, often depending on others for protection. Data from The Lancet Countdown show elderly heat exposure rose 266 percent from 2015-2024 compared with 1991-2000, while infant exposure increased 121 percent. Experts cite physiological limits, social isolation, chronic illness and certain medications as key factors raising dangers for seniors. Pregnant women also face higher chances of preterm birth and low birth weight. Simple steps such as drinking water, avoiding peak heat hours and ventilating homes at night can reduce harm.
