Speaking of Psychology
Speaking of Psychology

Encore: How living with secrets can harm you, with Michael Slepian, PhD

We all keep secrets—on average, people have about 13 secrets at any one time, five of which they have never told another person. Psychologist Michael Slepian, PhD, of Columbia Business School, talks about what types of secrets people keep, why keeping a secret bottled up inside can harm us, how keep

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Episode Summary

Executive Summary: Dr. Michael Slepian explains that secrets are common, usually intentional, and often burdensome because people must live with them rather than simply hide them. He argues that secrecy harms well-being most when it triggers shame, rumination, and feelings of disconnection, while selective disclosure—to trusted third parties, therapists, or through anonymous outlets—can reduce burden and strengthen relationships.

Main Topics: What counts as a secret vs. privacy (Priority: 5/5): Slepian distinguishes privacy from secrecy: privacy is about not broadcasting personal information, while a secret involves intending that others not learn the information. How common secrets are (Priority: 5/5): Research found that people carry many secrets at once, and most secrets fall into a manageable set of recurring categories such as lies, romantic desire, and sex-related matters. Why secrets can be psychologically harmful (Priority: 5/5): The burden comes less from concealment in conversation and more from having to live with the secret in one’s thoughts, which can drive rumination and lower well-being. Shame, guilt, and mental health (Priority: 4/5): Secrets tied to shame are more harmful than those tied to guilt because shame implies 'I am a bad person,' whereas guilt implies 'I did a bad thing.' Sharing secrets and relationship effects (Priority: 4/5): Confiding can create intimacy and strengthen bonds, but secrecy can also damage romantic relationships when people feel excluded or notice avoidance. Practical ways to cope with secrets (Priority: 4/5): Slepian recommends talking to a neutral third party, considering therapy, or using anonymous disclosure/journaling carefully to avoid reinforcing rumination. Personal family secret and research insight (Priority: 5/5): Slepian’s own discovery that his father was not his biological father reinforced his theory that the burden of secrecy lies in carrying it mentally over time.

Key Arguments: Secrets are defined by intent to withhold information, not merely by lack of public disclosure. Most people keep multiple secrets; secrecy is widespread and normal rather than rare. The major harm of secrecy is cognitive and emotional: repeated mental return to the secret, shame, and feeling unsupported. Lies can be used to maintain a secret, but lying and secrecy are distinct constructs. Keeping someone else’s secret can become burdensome when it intersects with shared social networks or repeated rumination. Disclosure to a trusted third party is often more helpful than trying to solve the secrecy dilemma alone. Anonymous sharing can be a useful first step, but journaling only helps if it promotes perspective rather than obsessive rehashing. People generally cannot tell from appearance alone that someone is keeping a secret, except in close relationships where avoidance becomes noticeable. Work-related secrecy can feel similar to personal secrecy when it prevents open discussion and creates isolation. The most harmful secrets tend to cluster around moral, relational, and goal-related dimensions.

Data Points: Average number of secrets kept at one time: 13 - Research cited in the interview found people keep about 13 secrets at any given time. Secrets never told to anyone: 5 - Of the average 13 secrets, about five have never been told to another person. Secret categories identified: 38 categories - Slepian’s research grouped common secrets into 38 categories. Participants whose secrets fit the categories: 97% - When given the category list, 97% of participants said they had at least one of those secrets. Open-ended secrets matching categories: 92% - In open-ended responses, 92% of secrets fit one of the 38 categories. Interview response to confiding: Typically positive - Slepian said the typical response to being confided in is positive, and only strongly negative responses lead to regret. Study on concealment and disease progression: Men with more concealed sexual orientation had more rapid disease progression and died sooner - He referenced a 1990s AIDS-era study as an example of secrecy correlating with worse health outcomes.

Pivotal Quotes: "The real problem with having secrets is not that we have to hide them, but rather that we have to live with them." — Michael Slepian: Explaining why secrecy is psychologically burdensome even when not actively concealed. "I'm a bad person to some degree. ... I've done a bad thing." — Michael Slepian: Contrasting shame with guilt as a key reason some secrets are more damaging than others. "Talking to a third party is definitely what I would recommend in that situation." — Michael Slepian: Advice for people trying to decide whether to reveal a difficult secret.

Implications: For listeners, secrecy is less about perfect concealment than about managing rumination and shame. Practically, trusted disclosure, therapy, or careful anonymous sharing can reduce burden and improve relationships; future research may better classify which kinds of secrets are most harmful.

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