Clues contained in tree rings have identified volcanic activity as the "first domino to fall" in a sequence that led to the bubonic plague.

Key Takeaways

Key Takeaways

Key Takeaways

Key Takeaways

Key Takeaways

Key Takeaways

Key Takeaways

Key Takeaways

WEDNESDAY, Dec. 3, 2025 (HealthDay News) — Hemorrhoids are a common condition that affects about half of all people by age fifty.