Psychology says people who don't brush their teeth every day aren't influenced by laziness, they may be responding to habits, motivation, and stress

Psychology suggests that people who do not brush their teeth every day cannot be explained by a single personality trait. Instead, inconsistent brushing may be shaped by a combination of factors, including habit formation, motivation, stress, mental overload, daily routines, and the demands of everyday life.

Raccontata daeconomictimes.indiatimes.com