Inspiration

In the 2040s, daily meals consist of engineered nutrition products designed to maximize productivity. These foods suppress natural hunger signals so people can work longer without interruption. Over time, many lose the ability to interpret their own digestion. Hunger, fullness, cravings, and stress become indistinguishable internal noise. We wanted to create a way for people to reconnect with their bodies when modern food has silenced their stomachs.

What it does

GROWL is a wearable digestive sensing system that translates stomach signals into audible growls and animated visual waves. The patch senses stomach contractions, acidity changes, digestive movement, and stomach tension. The app displays a live, animated stomach visualization. Tap it and hear what your digestion sounds like. Slow waves mean calm digestion. Sharp pulses signal cravings. Hollow rumbles mean your stomach is ready for food.

Who this is for: People with anorexia who can't feel hunger even when starving. GROWL tells them when their body actually needs fuel. People with binge eating disorder who feel controlled by cravings. GROWL detects stress rising before a binge and intervenes. And anyone whose hunger signals have been hijacked by engineered foods, stress, or modern life.

How we built it

We designed a wearable sensor patch concept that detects key digestive biomarkers. The app interface was built in Figma, featuring an organic animated stomach visualization that responds to real-time data. We created a sound design system that translates digestive states into distinct audio cues. The social layer was prototyped to show community features like Growl Challenges where users share and compare stomach sounds.

Challenges we ran into

Translating complex digestive signals into simple, intuitive audio was difficult. We also struggled with the ethical question at the heart of the project: are we helping people listen to their bodies, or just adding another layer of measurement to human experience?

Accomplishments that we're proud of

The live stomach visualization that moves organically based on digestive states. The sound library that makes each growl feel personal and alive. And framing the project's core tension in the ending question: "Are we finally listening to our bodies again? Or simply finding a new way to measure them?"

What we learned

That the future of wellness isn't more data. It's helping people feel human again. We learned that sometimes the most powerful technology is the kind that reconnects us with what we've lost, not what we can optimize.

What's next for GROWL Wellness App

Clinical validation with eating disorder specialists. Partnerships with therapists who can integrate GROWL into treatment plans. Expanding the sound library to distinguish more digestive states. And exploring whether the social layer helps or hinders genuine body awareness.

Built With

  • figma
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