BSIP LECA / SCIENCE PHOTO LIBRARY BSIP LECA / SCIENCE PHOTO LIBRARY
Cardiac rehabilitation. Men recovering from heart attacks exercise on the floor of a gym while a doctor watches over. Exercise is an important part of treatment for heart attack patients, as it helps to restore the strength of the heart muscle as well as improving the condition of the circula- tory system. Heart attacks (myocardial infarction) are fatal within 20 days in 40-50% of cases, and about another 15% die within a year of the attack. Further risk persists for years.
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