Although Holiday Heart typically converts back to a normal rhythm within 24 hours, it is advisable to seek treatment in an emergency department if you develop palpitations, or an irregular heartbeat.

FORBES: How to Avoid Holiday Heart Syndrome

"The rhythm is within me, " he told BBC Sport Online.

BBC: Xavier's recipe for success

Both these groups move to the rhythm of events taking place not only within but also without Iraq's borders.

FORBES: Iraq: The Oil, C'est Moi

If the heart rhythm isn't restored, which requires a defibrillator, death usually occurs within 10 to 12 minutes.

WSJ: Runners, Rest Easy: Heart Risks Seem Overblown