Baby's Senses: Interoception (Internal)
Interoception is also known as the "internal body sense". It tells us what's going on inside our body, like when we're hungry, thirsty, tired, hot, cold, or in pain. It also plays a big role in emotional regulation, since many of our emotions show up as physical sensations first: a flutter of nervousness, the restlessness of needing to move. Receptors inside our organs and skin send messages to the brain, and over time, the brain learns what those messages mean and how to respond.
Baby is born with the most basic version of this sense already active. They can feel hunger, discomfort, and the relief of being soothed (and they let you know it!). As Baby grows, their brain will learn to interpret more and more internal signals. Recognizing and responding to Baby's cues — such as hunger, fullness, and tiredness — is the best way to support the development of interoception in the early years!
How It Develops
Internal awareness in the first year
How to Help
Activities by age
When to Get Support
Concerns & next steps
⚑ How Interoception Develops
As Baby's interoceptive sense develops, you'll see them get better at recognizing and telling you their internal needs. Watch for these signs in Baby's first year and beyond:
At Birth
Cries differently for different needs (such as hunger vs. tiredness) — an early sign Baby is sensing and signaling internal states
Roots and opens their mouth when hungry, responding to the sensation of needing to feed
2–4 Months
Is usually happy when not hungry or tired — their internal states are starting to feel more predictable
6–9 Months
Stays full longer after eating, suggesting a growing ability to recognize fullness
Explores food and begins to finger feed, connecting eating with the feeling of satisfaction
9–12 Months
Cries and notices when hurt, showing awareness of internal pain signals
Is able to self-soothe when upset — an early step toward emotional regulation
12 Months and Beyond
Begins eating an increasing variety of foods, guided in part by internal preferences and appetite
With language development, starts to put words to internal feelings — a key step in building emotional awareness
Helping Interoception Develop
Try these expert-designed activities to help develop Baby's interoceptive sense!
▶ Gentle Strokes · 0–2 mo
▶ Sense of Touch · 2–4 mo
▶ Teething Time · 2–4 mo
▶ Express Yourself · 2–4 mo
▶ Chew on This · 4–6 moFeeding Tip · 4–6 mo · confirm game vs. note
▶Sign Language · 6–9 mo
▶Blow More Raspberries · 6–9 mo
▶First Time Food · 9–12 mo
When to Get Support with Interoception
If you notice ongoing challenges, like difficulty settling even when needs are met, or little response to hunger, fullness, or discomfort, write down what you see and share it with Baby's healthcare provider.
KEEP EXPLORING
↑ Sensory Development: Baby's Eight Senses
Vision
Hearing
Smell & Taste
Touch
Vestibular
Proprioception
