On What We Keep Hidden: Does Keeping a Secret Make You a Bad Person?
It is almost certainly not a secret that you are currently carrying a secret deep inside you. Like most people, you can likely count a dozen pieces of personal information that you have never shared—and perhaps never will—with anyone else. It might be a brief romantic encounter from your past, a minor mistake you made years ago, or something that seems entirely mundane on the surface. Many people keep their political and religious beliefs completely private, especially when they feel those around them won’t agree. Others hide their financial status, whether they have far more or far less money than people assume. Sexual orientation, too, remains a deeply personal matter for many.
The most straightforward definition of a secret is the intentional withholding of personal information from one or more people. For a long time, popular wisdom suggested that keeping secrets is inherently damaging to both our physical and mental health. However, ground-breaking research by Columbia University psychologist Michael Slepian and University of Chicago psychologist Alex Koch reveals a far more nuanced reality: what hurts us is not the act of hiding information from others, but rather our tendency to endlessly ruminate on it in isolation.
Some of the secrets we hold do not harm us at all, simply because they are nobody else’s business. Others, however, sit heavily on our minds, becoming a source of ongoing emotional distress. To understand why certain secrets weigh us down while others remain harmless, Slepian and Koch conducted a series of landmark studies.
Previous research had already established that human secrets generally cluster into 36 primary categories—ranging from infidelity, illegal acts, and romantic desires to job dissatisfaction, traumatic experiences, or even unusual hobbies. What remained unclear was why specific secrets cause psychological pain while others do not. In their initial study, researchers asked participants to organize these 36 common secrets into as many groups as they wished. By analyzing these groupings, the researchers identified three core dimensions that define the nature of any secret: Morality, Relational Connection, and Insight.
The Morality dimension reflects whether a secret involves behaviors that the individual or society considers immoral, such as causing direct harm to another person, theft, or illegal acts. Other secrets, such as personal ambitions, private hobbies, or feelings of professional discontent, carry no particular moral weight. The Connection dimension relates to the details of our close personal relationships—secret romantic desires, infidelity, or general sexual behaviors score high here, whereas academic struggles, political views, or workplace frustrations have very little to do with relational intimacy. Finally, the Insight dimension measures how clearly we understand why the secret must be kept. In our professional lives, we often hold confidential information and fully grasp why it cannot be shared; we possess high insight. Conversely, we often have very little insight into the root causes of our marital struggles or complex health issues, placing those secrets low on the insight spectrum.
Slepian and Koch discovered that by evaluating where a secret falls across these three dimensions, they could accurately predict the emotional distress it would cause. Each dimension triggers a distinctly different emotional experience within us.
Secrets become psychologically damaging when we lack the opportunity to process their contents with others. When we face difficult life challenges, sharing them with someone who can offer perspective helps us gain clarity. But when a secret ranks high in immorality, we experience shame and understandably hesitate to speak about it. Left without an outlet, we become trapped in our own heads.
On the other hand, secrets that rank high in connection or insight are far less likely to cause emotional harm. A secret high in connection reminds us of our capacity for intimacy; holding a private romantic connection, even if unshared, can actually elevate your mood. Similarly, secrets high in insight foster a quiet sense of personal competence. Knowing that you have been entrusted with confidential information at work reinforces the feeling that you are capable, reliable, and valued.
Of course, a single secret can exist across multiple dimensions simultaneously. An extramarital affair, for instance, ranks high in both immorality and connection. As a result, the person holding it might feel intense shame over betraying a partner while simultaneously experiencing the emotional charge of a close personal bond.
This complexity often leads people to ask: Does keeping a secret mean I am fundamentally a bad person?
When we carry certain secrets, we often struggle with feelings of shame or guilt. While these two terms are used interchangeably in daily life, they represent entirely different psychological experiences. Guilt is remorse felt in response to a specific action—it is the realization that “I did something wrong.” Shame, by contrast, is a pervasive feeling that occurs even when we haven’t done anything wrong; it is the painful belief that “There is something wrong with me.”
If you cheat on an exam, you might feel guilty about getting a higher grade than you deserved. Shame, however, stems from feeling inherently flawed or failing to live up to your own or someone else’s standards. With shame, whether you cheated or studied for weeks, you still feel like a failure at your core. In short, guilt targets your behavior, while shame attacks your identity.
This distinction changes how we react to the secrets we keep. Imagine a coworker pulls you aside to share that they are interviewing for a new job, asking you to keep it strictly confidential. Moments later, another friend asks you if everything is okay with that coworker. Even though this secret hurts no one, holding back the information might trigger a feeling of shame—you might feel like a bad or dishonest person for withholding the truth from a curious friend. In another scenario, if a friend asks you to keep quiet about a fake credential on their resume, you might feel guilty for becoming complicit in a lie.
Secrets that evoke shame are the ones that hijack our thoughts most aggressively because they erode our sense of self and leave us feeling worthless. Guilt, however uncomfortable, actually gives us space to reflect, make different choices, and align our actions with our values moving forward.
So, how do we prevent our secrets from eroding our relationships and mental well-being?
Since the true damage of a secret comes from solitary rumination, gaining clear insight into why we are keeping it can drastically relieve psychological distress. To test this, Slepian and Koch designed a simple reflection exercise for 300 participants. For every secret they held, participants were asked to daily consider three grounding statements tied to the three dimensions:
- “There is no real harm in holding this secret.” (Addressing Morality)
- “This secret protects someone I know or value.” (Addressing Connection)
- “I have clear insight into why I am keeping this secret.” (Addressing Insight)
Participants who practiced this simple daily reflection reported thinking about their secrets far less often over the following week, accompanied by a noticeable lift in their overall mood. Having absolute clarity about your motives acts as a shield against the destructive spiral of overthinking.
At the end of the day, we are all human, and every single one of us carries personal information we choose not to share with the world. Some secrets shield us from unnecessary shame, while others quietly empower us. As long as we understand the true reasons behind what we conceal, we can protect our boundaries without allowing our secrets to convince us that we are flawed.