Health script, save health in between scenes. PlayerPrefs.

Hi I have made a simple health script, using Unity's GUI to create a health bar which decreases as you loose health. I've also added a button which makes you loose 10 health each time you press it.

Now I'm trying to script so that your current health stays the way it was last scene, when you change scene. I have tried using PlayerPrefs, and it does work since the current health is the same when you change scene. Though if you quit the game and re-enter you still have the same amount of hp you had last time you played. I want it to go back to maximum health at every start-up, though not when the next scene starts.

using UnityEngine; using System.Collections;

public class healthScript : MonoBehaviour {

public int maxHealth = 100; // Minimum health is 0.0f (dead)

public int currentHealth = 100; // Players current health

public float healthBarLenght;

public Texture healthBartexture;

 void Awake (){
     
 PlayerPrefs.SetInt("healthP",maxHealth);
 }
 
 // Use this for initialization
 void Start () {
     currentHealth = PlayerPrefs.GetInt("healthP");
     healthBarLenght = Screen.width / 2;
 }

 
 // Update is called once per frame
 void Update () {
     
     adjustCurrentHealth(0);
     if(Input.GetKeyDown(KeyCode.O))
     {
     currentHealth = currentHealth - 10;
     SaveHealth();
     }
 
 }
 void OnGUI (){        
     
     GUI.Box(new Rect(10, 10, healthBarLenght, 20), currentHealth + "/" + maxHealth);    
     
     if (currentHealth == 0)
     {
     GUI.Box(new Rect(0,0,Screen.width,Screen.height), "Game Over");    
     Time.timeScale = 0.0f;
     }
 }
 public void adjustCurrentHealth(int adj)
 {
     currentHealth += adj;
     
     if (currentHealth < 0)
     {
         currentHealth = 0;
     }
     if (currentHealth > maxHealth)
     {
         currentHealth = maxHealth;
     }
     if (maxHealth < 1)
     {
         maxHealth = 1;
     }
     
     healthBarLenght = (Screen.width / 2) * (currentHealth / (float)maxHealth);
 }
 void SaveHealth (){
 PlayerPrefs.SetInt("healthP",currentHealth);
 }

}