Secrets and the mind
The mind returns to what it cannot set down.
"It isn't the hiding that weighs on us most — it's how often our minds return to what we're keeping. Across 10 studies cataloguing more than 13,000 secrets, how often people thought about a secret predicted lower well-being, lower relationship satisfaction, and worse physical health. How often they actively concealed it did not. The average person carries around thirteen secrets at any given time."
— Slepian, Chun & Mason (2017), Journal of Personality and Social Psychology, 113(1), 1–23. https://doi.org/10.1037/pspa0000085