Nervous and excited feel identical. Your body can't tell them apart.

I've watched this exact confusion cost people races, interviews, and conversations they'd been ready for all along.

You've felt this in the interview waiting room. Backstage, thirty seconds before you're introduced. In the pause before you hit send on a pitch you've rewritten four times. On a first date, at a starting line, outside a door you're about to walk through when the conversation on the other side is one you've been avoiding for weeks. Different rooms, different stakes, same exact physical event, and almost every time, we call it by the same limiting name: nerves.

Ask most people what that feeling means, and you'll get the same answer every time: "I'm nervous, so something's wrong."

Here's what nobody tells them: their body isn't warning them. It's preparing them. And the label they've put on that sensation is doing more damage than the sensation itself ever could.

I see this constantly, with clients working up to a hard conversation, with athletes in the sixty seconds before a race starts, with people about to walk into a room that matters to them. Different setting, same nervous system, same mistake: treating activation as evidence that something's about to go wrong.

One client was training for her first marathon, had never run more than 10K before, and started running in her forties. The week before the race, on a call, she said it plainly: "What if I'm not ready? What if I'm not enough?" We didn't try to talk her out of the fear. She took a breath and reframed it instead: "I see I'm stressed. I feel the nerves, and that's OK." Then she added the line that mattered most: "I'm doing it anyway. I'll just do it stressed." She ran it. First marathon, personal best by default, and she said afterwards she felt like she was flying.

The Insight: Your Body Can't Tell Nervous From Excited

Your mind decides which one you're having.

Psychologists have actually tested this distinction directly, and the results are more useful than most performance advice going around.

Physiologically, nervous and excited run on the same fuel. Adrenaline floods the bloodstream, heart rate climbs, breathing quickens, senses sharpen. The sympathetic nervous system doesn't have a separate setting for good stress and bad stress. It has one setting, arousal, and your brain adds the label afterwards, usually based on nothing more reliable than context and past experience.

Jamieson, Mendes, Nock and Blackstock (2010) put people through a high-stakes standardised test and, right before it started, told one group a single sentence: that feeling arousal during the test wouldn't hurt performance, and might even help it. That one sentence was the entire intervention. The group told to reappraise their arousal outperformed the group left to interpret their own racing heart as a bad sign, on a real, scored exam. Nobody's biology changed. Only the meaning of it did.

A few years later, Brooks (2014) pushed the same idea further. Before a stressful task (public speaking, singing karaoke in front of strangers, a mental maths test), she had people say one of two things out loud: "I am calm," or "I am excited." The people told to say "I am excited" performed better than the people who tried to calm down. Trying to calm your nervous system down when it's already activated is fighting a losing battle against your own physiology. Relabelling the exact same activation as excitement works with it instead of against it.

Then Crum, Salovey and Achor (2013) took the idea out of the lab moment and into people's actual lives. They measured something they called "stress mindset," whether someone generally believes stress is debilitating or generally believes stress is enhancing: something that sharpens focus and performance when it's present. People with the stress-is-enhancing mindset didn't just feel better. They showed different cortisol response patterns, better work performance, and fewer symptoms of anxiety and depression over time. This is the part that matters most: reappraisal isn't only a trick for one big moment. Held as a general belief, it changes how your body responds to pressure for months, not just for sixty seconds.

This matters because most advice before something hard tells you to do the harder thing: talk yourself out of the nerves entirely. What the research actually shows is that you don't need to. You just need to stop treating the feeling as evidence against you.

Here's what that looks like in practice, broken down:

• The physical sensation is neutral. The interpretation is the choice. A racing heart before a race and a racing heart before good news look identical on paper: same adrenaline, same cortisol. Jamieson's work shows that simply being told this fact, once, before a stressful task, is enough to shift how people perform under it, whether the task is an exam, a race, or a meeting. You are not overriding your biology. You're choosing which story to tell about it.
• "Calm down" and "get excited" are not the same instruction, and one of them works better. Brooks found that reappraisal-as-excitement consistently beat reappraisal-as-calm, likely because excitement and anxiety share the same high-arousal state, so the shift is small and believable. Trying to talk yourself all the way down to calm is a much bigger, less believable jump, whether you're backstage, at a start line, or outside a meeting room, and your nervous system tends to notice when you're lying to it.
• This isn't a one-time trick. It's a mindset that compounds. Crum's research suggests the people who benefit most aren't the ones who remember to reappraise once, under pressure, if they think of it in time. They're the ones who've quietly decided, as a general rule, that stress is useful information rather than a threat. That belief showed up in their actual physiology, not just their mood. Which means the sentence you say once before a hard moment is really practice for a belief you're trying to build permanently.

One honest limit, because I'd rather say it than have you find out the hard way: this is for the ordinary spike before something that matters, a race, a hard conversation, a presentation. It's not a substitute for support when what's underneath the racing heart is heavier than a stressful moment. If that's what's actually going on, "I'm excited" won't touch it, and it shouldn't have to.

None of this makes the nerves go away, and it isn't supposed to. It just stops you from spending your last sixty seconds fighting a feeling that was never actually against you.

What To Do With This Today

You don't need to eliminate nervous energy before something that matters. You need one honest check and one sentence.

The check: Next time your chest tightens before something: a race, a hard conversation, a presentation, a first date, notice that you can't actually tell, physically, whether this is dread or anticipation. That ambiguity is the opening.

The sentence: Out loud, once: "I'm excited." Not "I'm fine," not "I'm not nervous"; both of those are arguments with a feeling that's already there. "I'm excited" isn't a denial. It's a relabel, and it's one your nervous system can actually believe, because it isn't asking you to feel less. It's asking you to feel the same thing, on purpose, for a different reason.

If you coach, manage, or parent someone through pressure, this works even better modelled than explained. Say your own version out loud, where they can hear it, before you ever ask them to try it themselves. Nobody adopts a stress mindset from a lecture. They pick it up from watching someone they trust treat pressure as fuel instead of a threat, often enough that it starts to look like the normal way to respond.

Originally published on LinkedIn.