Why doesnt the value change?

Im trying to break a block but the value in BlockData doesnt change.

(on all blocks)

 public class BlockData : MonoBehaviour {

 public float health;
 public float strength;
 }

T$$anonymous$$s is called everytime i click a button, the Debug ges called but the health doesnt change. A block who has 1 health gets instant destroyed but a block with 5 health never dies... Why desnt t$$anonymous$$s work?

 void BreakBlock()
 {

     RaycastHit $$anonymous$$t;
     if (Physics.Raycast(cam.transform.position, cam.transform.forward, out $$anonymous$$t, range, LayerMask.GetMask("Breakable")))
     {
         float health = $$anonymous$$t.transform.gameObject.GetComponent<BlockData>().health;
         float strength = $$anonymous$$t.transform.gameObject.GetComponent<BlockData>().strength;

         if (breakingStrength > strength)
         {
             Debug.Log("attack");
             health = health - blockDamage;

             if(health < 1)
             {
                 Destroy($$anonymous$$t.transform.gameObject);
             }   
         }
     }
 }

}