const healthObj = {
  showHealth : function() {
    console.log("오늘 운동시간 : " + this.healthTime);
  }
}
const myHealth = {
  name : "mama",
  lastTime : "11:20"
}

const newobj = Object.setPrototypeOf(myHealth, healthObj);
console.log("myhealth is ", myHealth);

console.log("newobj is ", newobj);