unning, rowing, cycling, skipping: They may not just strengthen your heart, they may also actually repair it when it’s damaged. Proteins that help keep cells tape), their cardiac proteins were restored, making their broken tickers healthy again, the reports. It’s an amazing discovery, because it shows just how powerful exercise — specifically, aerobic exercise — is at boosting heart health. And though the findings will be most immediately beneficial to people already dealing with heart failure, they also reinforce how important working out is to our cardiovascular system. So get in at least 25 minutes of vigorous aerobic activity three days a week (the American Heart Association’s recommendation) and add at least two days a week of resistance exercise to keep that pump primed.
