Do you cringe at people who overshare on social media, or joke with friends about “TMI”? I know I do. But while it’s easy to mock public confessions, it’s harder to recognize the risks of normalizing silence: the anxieties we keep inside, the family histories we don’t discuss, and the small omissions that make workplaces and relationships fragile. Our instinct to scorn “attention seekers” might be hiding a deeper public-health issue: chronic concealment.
For much of my academic career, I made a living by scolding people about privacy. I lectured on digital hygiene, warned audiences about how social media amplifies foolishness, and played the part of the cautious scientist: don’t store passwords in a document, don’t take quizzes that leak personal preferences, don’t post things you can’t take back. But I was a walking contradiction. In private, I took online quizzes for fun. I kept a notepad of passwords on my desktop. I knew the rules and, like many of us, I broke them.
That cognitive dissonance eventually became too much to ignore. When I stepped back to look at the broader patterns from research—not just on privacy, but on disclosure, trust, and health—I saw something surprising. The consistent finding wasn’t that humans are inveterate oversharers; it was that we hide the things that matter most. We had come to treat silence as a default virtue. But that default comes with a cost.
One set of experiments changed my perspective in the bluntest way. In a study we called What Hiding Reveals, my team and I gave people an awkward but revealing choice: imagine you’re going to date one of two people, and you can ask each a set of questions. One candidate answers honestly—even admitting painful, stigmatized facts like drug use or cheating on taxes—while the other refuses to answer. Which would you choose? Time and again, across different contexts—dating, hiring, sitting next to someone on the subway—people chose the one who revealed. Not because we like bad news, but because we prefer openness to obvious withholding.
Why? Because disclosure, even about flaws, is a social signal. Revealing something sensitive means taking a social risk, and that risk-taking signals trustworthiness. Trust, in turn, builds more trust. When someone refuses to answer, they aren’t just protecting an unflattering fact—they’re withholding the currency of social life. We interpret that omission as contempt, evasiveness, or unreliability—and we respond accordingly.
A second line of evidence raised further doubts. Neuroimaging research shows that answering questions about ourselves—the act of revealing—activates brain regions linked to reward. In simpler terms, telling someone about yourself can feel pleasurable, much like other social rewards do. If evolution had wired disclosure to be unpleasant, it wouldn’t have persisted as a trait. The fact that it can feel good suggests it has been adaptive. The pleasure isn’t just narcissistic vanity—it’s the brain’s way of signaling, “This behavior helps you connect, and connection helps you survive.”
There’s also a physiological case. Developmental research shows a clear pattern: the more children express how they feel, the less physiologically stressed they become—measured through arousal, sweat, heart rate, and so on. Children who mask or suppress their emotions show higher stress markers, while those who let their feelings out recover more quickly. Over time, cultural lessons like “don’t be dramatic” can harden into habits of withholding that raise our baseline stress and make emotional life more precarious.
Taken together, these findings shifted my understanding—not toward the idea that confessing everything to everyone is good. There are obvious and important limits: power imbalances (what an employee tells a boss can be used against them), privacy rights, safety concerns, and moral considerations.The importance of protecting confidences is clear. But my point is narrower and, I believe, more urgent: we should stop treating silence as the default.
So how do we loosen the grip of silence without confessing everything indiscriminately? The first step is simply to notice how much goes unsaid. When I teach this, I ask people to do a simple audit of their day. Imagine two jars: one labelled “said,” the other “unsaid.” Every time you voice a thought, drop a mental token into the first jar; every time you think something but hold back, drop one into the second. The exercise is revealing. Most of what ends up in the “unsaid” jar isn’t scandalous—it’s everyday emotional context: “I didn’t sleep well”; “I’m more overwhelmed than I look”; “That comment meant more to me than you realize.”
The second step is to treat at least some of those moments as conscious decisions, not just reflexes. When people face a choice about whether to disclose something—should I tell my boss I have ADHD? Should I admit I’m nervous about this presentation?—they tend to focus only on the risks of speaking up. Those risks are real. But we rarely ask the opposite question: what are the risks of staying silent? Missed opportunities for help. Emotional distance mistaken for indifference. When people weigh both sides, their choices become more deliberate and often change.
The third step is to go one layer deeper than usual. Most daily conversation stays at the level of commentary: “busy day, great meeting, the kids are having fun.” Calibrated revealing doesn’t mean saying everything. It means occasionally adding what it means to you. “I’m excited about this meeting—and a bit nervous”; “They’re laughing so much—I can’t remember the last time I laughed like that.” That extra layer isn’t cost-free, but it opens up possibilities that pure commentary rarely does: for understanding, coordination, support—and even fun.
This matters because revealing is a skill. And like any skill, it improves with practice. As a child, I lived in Germany with my family. Despite being immersed, I never became fluent because I was afraid of making mistakes. I tiptoed around grammar, froze over sentence structure, and treated every article as a potential landmine. My brother took the opposite approach. He spoke constantly, cheerfully mangled the grammar, and kept going. Years later, he’s fluent. I’m not.
We also need better social support for safe revealing—norms and spaces where people feel permitted to say “this is hard for me” without being judged. That’s partly cultural work (teaching kids to name emotions, modeling how to admit mistakes) and partly structural (workplace privacy protections, sensible limits on what managers can ask).
I remain, proudly, a recovering privacy expert. I still worry about data security, and I still cringe at performative oversharing. But I’m convinced that our fear of saying too much distracts us from a quieter harm. Oversharing feels dangerous because it’s visible; concealment feels safer because it’s invisible. The greater risk, I suspect, isn’t saying too much—it’s saying nothing at all.
Frequently Asked Questions
Frequently Asked Questions About Sharing Personal Information
BeginnerLevel Questions
What counts as personal information
Personal information is any detail that can identify you such as your full name address phone number email date of birth financial details photos location data and even your opinions or habits online
Why would I want to share personal information
Sharing can help build trust and deeper connections in relationships enable personalized services and is often necessary for things like opening bank accounts applying for jobs or using social apps
What are the main risks of sharing too much
The main risks include identity theft financial fraud stalking or harassment damage to your reputation and having your data sold or used for targeted advertising without your consent
How do I know if a website or app is safe to share with
Look for https in the URL check for a clear privacy policy read reviews and see if the platform is wellknown and reputable Be extra cautious with requests that feel unnecessary
Should I share personal details on social media
Be selective Avoid sharing your full address phone number financial info or realtime location publicly Use privacy settings to control who sees your posts and remember that anything you post can potentially be saved or shared by others
Advanced Practical Questions
How does oversharing differ in personal vs professional settings
In personal settings oversharing might strain friendships or make you vulnerable In professional settings it can damage your credibility violate workplace policies or create biases Always keep professional sharing relevant and measured
What is context collapse and why does it matter
Context collapse happens when you share something with a mixed audience A post meant for friends might be misinterpreted by your boss It matters because it can lead to awkwardness conflict or professional harm
Can deleted personal information ever be fully removed
Not always Once information is online or shared digitally copies may exist on servers in backups or on other peoples devices Assume that anything you share could be permanent in some form
What are some subtle signs Im sharing too much with someone new
Signs include
