If we can keep our cardiovascular system in good condition, we will achieve better quality of life and fewer scares. As the song goes, having a “happy heart” is not so hard. We just need to follow a balanced diet and regularly control our cholesterol and blood pressure. And, when we need, to take an Omega-3 (EPA and DHA) supplement, a type of nutrient that has been proven to have a positive effect on the cardiovascular system and the heart. But remember that not all Omega-3 products are the same.