That's because your nerves are on edge, she says; if you're overstimulated, you feel unsafe and, as a result, react strongly.

After a week of stress, mice show changes in how their brains process sound, reducing how well they perceive loud noises, ...

Tom Sietsema has been The Washington Post's food critic since 2000. In leaner years, he worked for the Microsoft Corp., where he launched sidewalk.com; the Seattle Post-Intelligencer; the San ...