Most of us throw leftovers in the microwave without a second thought. It's convenient, saves time, and reduces waste. Yet that innocent habit might be exposing you to health risks you never imagined.

Rice is a staple in many cuisines, yet it's not without its risks. Left at room temperature, cooked rice can harbor Bacillus cereus spores, resilient to reheating. As the B. cereus spores can survive ...