http://www.dailyrx.com/sudden-cardiac-arrest-middle-aged-adults-occurred-rarely-during-exercise-and-was-more-survivable Heart attacks can strike with no warning, even while exercising. However, middle-aged adults shouldn’t be afraid to exercise, as the likelihood of sudden heart attacks may be low during vigorous activity. A new study found that a low number of sudden cardiac arrest events occurred during sports activity. Those sports-related cases also had higher rates of survival than other cases. Sumeet S. Chugh, MD, of the Heart Institute at Cedars-Sinai Medical Center in Los Angeles, led this study. “Our study findings reinforce the idea of the high-benefit, low-risk nature of exercise in middle age,” Dr. Chugh said in a press release. Dr. Chugh and team studied more than 1,200 cases of sudden cardiac arrest (SCA) that occurred between 2002 and 2013 in the Oregon Sudden Unexpected Death Study. All of these cases involved patients between 35 and 65 years old. Only 63 cases of SCA occurred during sporting activities. SCA is a sudden loss of heart function that stops blood flow to the heart.