run on respawn, in the following sequence:

• function to remove a heart (the same one that the player performs on the HUD)
  a second later
  -the function of adding a heart.
  however creating these functions again to not remove xp from the player.
  should fix the problem. because the player himself does it to regenerate his additional life

made me want to learn java and forge just to do this

obviously don't do it if the player doesn't have any extra hearts