If you're looking for a quick and effective workout that will reinvent your routine, try this 15-minute exercise…

Swimming is a great way to improve your stamina, as it is a full-body workout that requires you to use all of your major muscle groups. It is also a low-impact exercise, which makes it easy on your joints. If you are looking to maximize your stamina with swimming, here is a sample routine:

Your core is the foundation of your body. It supports your spine, keeps your body stable, and allows you to move with ease. A strong core can also help you improve your posture, reduce back pain, and boost your athletic performance.