In Pixar's latest film, "Inside Out 2," complex feelings like envy and embarrassment join the cast of characters. Nostalgia, however, is hurried out the door to cries of "too early," when she appears.

We’ve all faked a smile at some point—to respond politely to a bad joke in a Zoom meeting, to show appreciation for a gift that misses the mark, or to cover up personal discomfort and sadness. But ...

Saying one thing while feeling another is part of being human, but bottling up emotions can have serious psychological consequences like anxiety or panic attacks. To help health care providers tell ...

A team led by scientists at Penn State has created a stretchable, rechargeable sticker that can detect real emotions — by measuring things like skin temperature and heart rate — even when users put on ...