text: Though research is still as yet scant , those suffering from cardiovascular disorders ( particularly those recovering from myocardial infarction , or heart attacks ) should resume physical activity ( including sexual intercourse and masturbation ) gradually and with the frequency and rigor which their physical status will allow .
simplified: And while doctors have no proof of this actually being true , those suffering from cardiovascular disorders ( particularly those recovering from myocardial infarction , or heart attacks ) should resume physical activity ( including sexual intercourse and masturbation ) gradually and with the frequency and rigor which their physical status will allow .