Extreme Heat and Cold May Raise Heart Failure Risk, Study Finds
What Happened
A new study published in JACC and presented at ESC Congress 2026 found that short-term exposure to cold spells, low temperatures and high temperatures can increase the risk of hospitalization for heart failure patients. The research analyzed 482,000 heart failure hospitalizations in Sweden between 2006 and 2021.
Key Takeaways
Researchers found that cold temperatures were linked to a higher risk of hospitalization several days later, while hotter temperatures were associated with a more immediate increase in risk.