What Is Interoception?

Interoception is the ability to sense the internal state of your body. This includes awareness of your heartbeat, breathing, hunger and fullness, muscle tension, temperature, and other bodily sensations. It is a core function of the nervous system and plays an essential role in how you experience emotions, make decisions, and care for yourself.

Interoception allows you to feel what is happening inside your body and to respond to those sensations with appropriate action. When your interoceptive awareness is strong, you may be able to recognize that your heart is racing because you feel anxious, or that your stomach is tight because you are overwhelmed. You may notice when you need to slow down, eat, rest, move, or seek connection.

When interoception is disrupted, which is common in individuals who have experienced trauma or chronic stress, it may feel difficult to interpret or trust what the body is communicating. You might feel disconnected, confused by your physical sensations, or unaware of your body’s needs until they become urgent.

As Jessica Maguire teaches in her Nervous System Certification course:

“Interoception is not just about noticing sensations. It is about making meaning from them. It allows us to detect what our body is telling us and take actions that support regulation and wellbeing.”

You might begin to notice interoception in everyday moments, such as:

• Becoming aware that your jaw is clenched or your shoulders are tight
• Realizing that your breath is shallow or held
• Noticing a sinking feeling in your stomach before a difficult conversation
• Recognizing early signs of fatigue or dehydration
• Feeling your heart rate increase before making a decision or entering a stressful environment

For me, interoception became most clear when I realized that my body was responding to stress before my mind could catch up. I would sense tension in my jaw, shallow breathing, or a tightness in my chest, even when there was no immediate threat. Over time, I began to recognize that these were not random signals. They were meaningful indicators of my nervous system’s state. I noticed the difference between being tired and being depleted. I felt a subtle inner yes or no before making decisions. I began to understand how my body was constantly communicating with me. Learning to slow down and listen, without judgment, helped me reconnect with a deeper sense of internal safety and regulation. This is what interoception offers—a pathway back to the body, and to the wisdom it holds.