function accrueAccount(address _account) public {
  _distributeReward(_account);
  // accrue only updates cumulativeInterestRate to the newInterest
  // newInterest is not added to total debt or total LP supply!
  accrue();
  // instead total debt / total LP supply is increased here by a much smaller amount, the new interest specific for the updating user
  _accrueAccountInterest(_account);

  if (_account != feeRecipient()) {
    _accrueAccountInterest(feeRecipient());
  }
}
