Loop Never Ends

void this_is_what_loop_looks_like
{
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
  for (int i = 0; i < 10; i++)
  {
    digitalWrite(ledPin, HIGH);
    delay(delayPeriod);
    digitalWrite(ledPin, LOW);
    delay(delayPeriod);
  }
// ... it never ends