Israeli Study Reveals Rising Health Costs from Increasing Heat Waves

A new study by the Taub Center highlights the significant health impact of rising heat waves in Israel, revealing increased emergency room visits, hospitalizations, and mortality linked to heat stress. Analyzing data from 2010 to 2023, researchers focused on heat-sensitive conditions including respiratory, cardiovascular, and kidney diseases. The study found that during high heat stress weeks, emergency visits surged by about 41% for respiratory patients, 28% for kidney diseases, and 18% for cardiovascular issues, with notable increases across all age groups for respiratory illnesses.

The research also showed that heat waves prolong hospital stays, with each one-degree rise in the heat stress index extending respiratory patients' hospitalization by 19% for men and 22% for women. Overall, every unit increase in the heat stress index results in approximately 5,500 additional hospital days annually. Surprisingly, residents of higher socioeconomic areas sought emergency care more frequently during heat waves, possibly due to better hospital access or greater reliance on air conditioning, which may reduce heat acclimatization.

Geographically, emergency visits rose sharply in Tel Aviv, central Israel, and Jerusalem. The study estimates that the increased heat stress over the past decade will cost Israel's healthcare system an extra 380 million shekels over ten years, mainly from longer hospital stays for heart and respiratory patients. Dr. Maya Sade, lead researcher, emphasized that despite widespread air conditioning use, heat waves already strain public health and healthcare resources. She called for improved healthcare preparedness for future heat waves, focusing on vulnerable groups like the elderly and chronically ill, and expanding community healthcare to prevent and mitigate heat-related health risks. The findings underscore climate change as a growing health and economic challenge for Israel.