We suspected it. The research and speculation about mirror neurons predicted it. And studies have proved it: stress—and the emotions of frustration, anxiety, and fear that go with it—are contagious.

I just returned from Seattle, where I gave a presentation on persuasive speaking skills to employees and senior executives at Microsoft. When the organizers of the conference asked if I’d like to ...

Stress in children may cause them to regress in behavior, withdraw, have heightened emotional responses, or become more fearful. Caregivers can encourage rest, fun, and positive thinking to help a ...