can figure out why it starts at level 2

hello! i am a bit of a noob when it comes to unity and ive run into some trouble, ive made a level up script and at the moment pushing r adds experience to it and eventually you level up, now my problem is you start out at level 2 and not 1 and i cant figure it out.

here is the code

 var curHealth : int = 100;
 var maxHealth : int = 100;
 
 var healthtext : GUIText;
 
 var curXp : int = 0;
 var maxXp : int = 0;
 
 var xptext : GUIText;
 
 var level : int = 0;
 
 function Start () {
 
 
 healthRegen();
 
 }
 
 
 
 
 
 function Update () {
 
 
 healthtext.text =  "Health " + curHealth + " / " + maxHealth;
 
 xptext.text =  "Level : " + level + " XP: " + curXp + " / " + maxXp;
 
 if(curXp == maxXp)
 {
     levelUpSystem();
 
 }
 
 
 
 if(curHealth < 0 ) {
 
 curHealth = 0;
 
 
 }
 
 
 if(curHealth > maxHealth) {
 
 
 curHealth = maxHealth;
 
 
 }
 
 
 
 if(Input.GetKeyDown("e")) {
 
 curHealth -= 10;
 
 }
 if(Input.GetKeyDown("r")) {
 
 curXp += 10;
 
 }
 
 
 }
 
 
 
 
 function healthRegen () {
 
 
 for(i=1;i>0;i++) {
 
 
 
 yield WaitForSeconds(0.5);
 
 if(curHealth < maxHealth) {
 
 curHealth++;
 
 }
 
 
 }
 
 
 }
 
 
 function levelUpSystem () {
 
 
 curXp = 0;
 maxXp = maxXp  + 50;
 level += 1;
 
 maxHealth += 20;
 
 
 
 }