A healthy heart is vital for long, enriching life. A lot of people are under the misconception that our heart health is what it is – and that we can’t do anything to change it for the good or the bad. Exercise has a massive impact on how your heart functions Actually, though, the way we live our lives can have a massive impact on how well our hearts can function. Diet, exercise, and stress levels all come into play when it comes to the overall health of your heart.