Myth: To stay in shape, you only need to work out once or twice a week.
Truth: Once or twice a week won't cut it for sustained health benefits. For your workouts to produce real results, you should be exercising 3-5 times a week, Chris Jordan, the exercise physiologist who came up with the 7-minute workout, told Business Insider.
His insight is bolstered by a new study published in January in the American Heart Association's journal Circulation that found that the best results for heart health were gleaned when participants worked out 4-5 times a week.
[Photo via Reshot]