Record-breaking heatwaves across the Northern Hemisphere have again sparked concerns about the danger such blistering temperatures pose to people's health, particularly children and the elderly.
Such sustained heatwaves — which experts say are becoming more common due to human-driven climate change — can put human bodies under extreme pressure, sometimes leading to dehydration, heatstroke and death.
Research recently found that more than 61,000 people died due to the heat in Europe last summer — and 2023 is shaping up to be even hotter.