[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Type](https://evolu.dev/docs/api-reference/common/Type) › Age

```ts
const Age: brand(
  "Age",
  lessThan(200)(NonNegativeInt),
);
```

Defined in: [packages/common/src/Type.ts:6842](https://github.com/evoluhq/evolu/blob/f0109fb501a593010e858e39248dde1200eeb2d7/packages/common/src/Type.ts#L6842)

A person's age as a [NonNegativeInt](https://evolu.dev/docs/api-reference/common/Type/variables/NonNegativeInt) less than 200.