Ever wonder why adults cling to things in which they've invested time or effort? In behavioral experiments, people often predict that they would stick with an option just because it was harder to get.

People with health anxiety tend to get tangled up in problematic behaviors, such as reassurance-seeking, excessive body checking and avoidance. These behaviors act like a vortex, sucking you into that ...

Why do people sometimes fail to take actions they know could improve their lives—for themselves, their families, or their communities? Whether that’s waking up early for a morning workout, putting ...

A meadow grasshopper (Pseudochorthippus parallelus). This species is widespread across most of Europe and is commonly used as a model organism in evolutionary biology. If an experiment is repeated ...