Do you respond to the "ping" of incoming e-mail the way Paris Hilton responds to a camera? Although it may be tempting to check your e-mail every few minutes—don't. Dropping everything to see who or what might need your attention disrupts concentration, shortens your attention...

“I still feel the pressure to say yes to everyone,” admits Darcy Ing, a San Francisco psychologist of Asian descent. “The Asian emphasis on cooperation and solidarity places a lot of pressure on women to go along with whatever the group wants.”...