Psychology says people who check twice or thrice if they have turned the gas stove off or locked the doors before sleeping do not have OCD, they are just trying to create certainty before rest

Psychology suggests this behavior is rooted in a deeply human need for security and reassurance. Going to sleep requires temporarily letting go of control for several hours, and the brain often seeks a sense of safety and certainty before making that transition.

Raccontata daeconomictimes.indiatimes.com