Psychology suggests adults who repeatedly check that the door is locked aren’t doubting their memory: They’re searching for certainty in a world that rarely offers enough of it

The persistent itch to double-check a locked door frequently originates from a deeper uncertainty in one’s memory rather than forgetfulness. Psychology suggests that this compulsive behavior can diminish actual confidence, leading to a frustrating loop where the mind craves assurance yet struggles to build genuine certainty. This highlights a universal challenge we all face regarding navigating uncertainty in our lives.