src/models/usuario.js

const mongoose = require("mongoose");

const usuario = new mongoose.Schema({
  nombre: { type: String, required: true },
  apellido: { type: String, required: true },
  username: { type: String, required: true },
  password: { type: String, required: true },
  edad: { type: Number, required: true },
  altura: { type: Number, required: true },
  peso: { type: Number, required: true },
  genero: { type: String, required: true },
  tipo_diabetes: { type: String, required: true },
  actividad_fisica: { type: String, required: true },
});