How do I make Game Over text stay enabled for a few seconds before the Application Load function runs?

I have this script that reloads the level once it sees that the game over text is enabled and then reloads the level almost instantly I would like to know how to make it stay there for a few seconds...

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 public class MovementScript : MonoBehaviour {
     
     public Slider healthBarSlider;  //reference for slider
     public Text gameOverText;   //reference for text
     private bool isGameOver = false; //flag to see if game is over
     public float speed;
 
 
     void Start(){
         gameOverText.enabled = false; //disable GameOver text on start
     }
     
     // Update is called once per frame
     void Update () {
         //check if game is over i.e., health is greater than 0
         if (!isGameOver) {
             transform.Translate (Input.GetAxis ("Horizontal") * Time.deltaTime * speed, 0, 0); //get input
             transform.Translate (0, Input.GetAxis ("Vertical") * Time.deltaTime * speed, 0);
         }
     }
     //Check if player enters/stays on the fire
     void OnTriggerStay(Collider other){
         //if player triggers fire object and health is greater than 0
         if(other.gameObject.name=="Fire" && healthBarSlider.value>0){
             healthBarSlider.value -=.011f;  //reduce health
         }
         else{
             isGameOver = true;    //set game over to true
             gameOverText.enabled = true; //enable GameOver text
         }
         if (isGameOver == true) {
             Application.LoadLevel(0);
         }
     }
 }