Change the text of a UI button on clicking it?

When i click my ui button it changes the text once. then my script wont change the text back when clicked again. Ive tried about everything i can think of so asking for help here. guessing im overtired and missing it. the debug log only prints "1", one time, every time i click the button.

 public void HealthBars()
 {
     if (PlayerPrefs.GetInt("HealthBars") == 1)
     {
         PlayerPrefs.SetInt("Healthbars", 0);
         HBButton.text = "Turn On Enemy Healthbars Test";
         Debug.Log("0");
     }
     else
     { 
         PlayerPrefs.SetInt("Healthbars", 1);
         HBButton.text = "Turn Off Enemy Healthbars Test";
         Debug.Log("1");
     }
 }