21.   No matter how the data were analyzed, fish eating was associated with a reduced risk of cardiac deaths.

22.   Often, the first clue that something is wrong with the way the heart beats is sudden cardiac death.

23.   Not only were the cardiac deaths clustered in the first two hours after the quake, but they were more frequent near the epicenter.

24.   Only men were studied, but other studies have shown that sudden cardiac death also affects women, though at lower rates.

25.   Smoking doubles your risk of heart attack and increases the risk of sudden cardiac death to two to four times that of nonsmokers.

26.   Sudden cardiac death is usually caused by restriction of blood flow to the heart, an irregular heartbeat or a deterioration of the heart muscle.

27.   Sudden cardiac death may not be the only risk from chemotherapy at doses often being used for high-risk breast cancer cases.

28.   The association had hoped to cut the number of sudden cardiac deaths in half.

29.   While great strides have been made in preventing and treating other kinds of heart attacks, sudden cardiac death remains a major medical puzzle.

30.   Patients taking older antipsychotic drugs for mental illnesses such as schizophrenia run a higher risk of sudden cardiac death, a U.S. study suggests.