Have you ever watched yourself become someone you didn't want to be in the middle of an argument? Your voice sharpens. Or you go quiet and can't find a single word. Then your body settles, and you can suddenly see the whole conversation clearly.

Here's what was happening. In conflict, your brain can stop treating the moment as a disagreement and start treating it as a threat. Once that threat system switches on, you don't fully choose how you respond. You catch yourself doing it.

I'm Dr. Tracey Marks, a psychiatrist, and this is part of my Science of Love series. So let's break down what's really going on under the surface of a fight.

It's a defense response, not a conflict style.

Fight, flight, freeze, and fawn often get talked about like personality types. They're really defense responses — four different exits from the same threat system. Fight moves toward the threat: louder, sharper, more urgent. Flight tries to leave it: changing the subject, walking out, checking out while still in the room. Freeze goes still: a blank mind and one-word answers. Fawn tries to make the threat go away by appeasing: apologizing fast, agreeing before you know what you think.

Think of Eli and Priya. The dishes Eli promised to do are still in the sink. Priya's voice rises. Eli goes quiet and stares at the floor. She's thinking, "He doesn't care." He's thinking, "She's attacking me." Both are wrong about the other person's motive. But both are reading their own body state accurately as threat. The dishes are the trigger. The meaning underneath — "I'm alone in this," "I'm being attacked" — is the fuel.

Your alarm is faster than your thinking.

Your amygdala, the brain's threat detector, reacts to a sharp tone or a dismissive look in about 200 milliseconds. It answers one question — safe or dangerous — faster than your conscious mind can keep up. That signal hits your sympathetic nervous system, the body's gas pedal. Your heart climbs, your breathing shortens, your focus narrows. Meanwhile, the prefrontal cortex — the part that holds nuance and remembers what someone said thirty seconds ago — loses influence. The alarm gets louder. The thinking gets quieter.

John Gottman's research calls the peak of this state flooding. Your body becomes so activated that your brain can't process the conversation well. Heart rate can climb past 100 beats per minute. Empathy gets harder. Memory gets unreliable. From the outside you look present. Inside, you're gone.

This is why telling a flooded person to "just use I-statements" so often fails. Communication skills need a regulated brain. Asking for them mid-flood is like asking someone to do algebra while the fire alarm is going off.

What you can do.

You have more agency here than it feels like in the moment. Two tools help.

First, recognize flooding. The signs show up in the body before you understand them: racing heart, looping thoughts, narrowed focus, a partner who suddenly feels like an opponent. When you notice that shift, ask yourself one question: "What did my brain just decide was at stake?" For most of us, it lands in one of a few buckets — respect, safety, abandonment, control, or being misunderstood. That question moves you off the surface topic. "You never help" becomes "When I saw this wasn't done, I felt alone."

Second, take a real reset. Gottman's work suggests at least twenty minutes, because your stress chemistry doesn't drop the second you decide to be reasonable. This isn't storming off or going silent. You say, "I'm flooded. I want to come back to this, but I need twenty minutes so I can actually hear you." Then you calm your body — walk, breathe slowly, splash cold water on your face — instead of rehearsing your case. Rehearsing keeps the alarm on.

A threat response explains your reaction. It doesn't give that reaction permission to run your relationship. The skill isn't never getting activated. The skill is catching it early, letting your system reset, and coming back with more of your brain available.