“I Can’t Ever Tell My Wife”: People Open Up About The One Secret They’ve Hidden From Everyone

The average person holds onto 13 secrets, five of which they’ve never told a living soul.

These findings were revealed in a paper published in 2017, which analyzed more than 13,000 secrets across 10 different studies. Researchers presented participants with 38 common categories of secrets and asked which ones they were actively keeping.

The data revealed that the most common secrets people refuse to share with anyone include outright lies, extramarital thoughts, romantic desire, unconventional quirks, ambitions, mental health challenges, and financial struggles.

Our secrets can seriously weigh us down, but according to experts, the real damage doesn’t come from the effort it takes to lie or hide the truth in conversation.

The true mental burden comes from mind-wandering — when you are completely alone, your brain constantly drifts back to that secret on a loop. Keeping a part of your inner world locked away can get quite lonely and isolating.

“The problem with having a secret is not concealment. It’s that you have to think about it, you have to live with it. Even when you don’t have to hide it, it can hurt you,” says Michael Slepian, assistant professor at Columbia Business School, whose research is focused on secrecy and trust.

Scientists have found that bottling things up can actually distort your reality. Some people feel physically heavier when burdened with a secret, which can literally skew how they navigate their physical surroundings.

“We found that when people were thinking about their secrets, they actually acted as if they were burdened by physical weight. It seems to have this powerful effect even when they’re not hiding a secret in the moment,” says Slepian.

We keep secrets mostly to protect our relationships and our reputation. Research shows that fear of judgment drives most of our silence. We hide financial stress, past mistakes, or taboo habits because we don’t want to deal with family drama, rejection, or hurting the people we love.

But it’s also about control. Studies show that keeping a secret is a way to set personal boundaries. It lets us process big life changes, money issues, or private anxieties on our own terms. We stay quiet simply because we want to control our own story before the rest of the world weighs in.

Telling a close friend or a family member a secret is also a massive gamble. Research shows that people actually spill about 26% of the secrets directly confided in them.

This usually happens if your secret crosses a moral line for them. If a friend feels your secret is wrong or hurtful, their loyalty shifts from protecting you to venting their own shock. This can leave people exposed to major social fallout or judgment.

“People are more likely to reveal other people’s secrets that they think are immoral because it satisfies a (perhaps unconscious) emotional need to see that person punished for the morally outraging secret behavior,” says Jessica Salerno, an associate professor of psychology at Arizona State University.

The risk of real-life backlash is exactly why people turn to the internet. Sharing their deepest baggage with millions of random strangers on Reddit gives them the relief of getting it off their chest with zero real-world consequences.

Strangers online can’t ruin your relationships, get you fired, or judge your family dynamics. The void of the internet then feels way safer than your own best friend

This drive for digital anonymity makes perfect sense when you look at how destructive keeping quiet can be.

Bottling things up is psychologically costly and associated with a host of negative consequences.

A recent study published in Frontiers in Psychology found that hiding secrets triggers a constant state of low-level emotional stress, which frequently leads to anxiety, burnout, and even physical exhaustion.

Sharing it finally breaks that painful loop, lowering your heart rate and making you feel relieved.