Italy's historic 2026 summer heatwave is pushing temperatures past 40°C, posing unique physiological risks to infants and toddlers. Because young children cannot efficiently communicate thirst or regulate their core temperature, staying ahead of dehydration is vital. Discover the critical clinical warning signs to look for - such as a sunken fontanelle or high-output lethargy - and learn practical, culturally smart Italian cooling tactics to keep your family safe on the move.