With the new year now in full swing, many busy people are looking to maintain ambitious resolutions that likely include reference to either getting in shape, losing weight or just finally becoming more fit.  Moreover, there is an ever-growing body of evidence and studies that indicate adding daily exercise can not only help people live longer and healthier lives, but may also help them be happier and more productive.  In fact, a study says that adults who worked out two to four times more than the recommended amount of vigorous physical activity—about 150 to 299 minutes per week—were found...