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Exercise is an important part of a healthy lifestyle.
It can help us lose weight or keep a healthy weight. It maintains or improves cardiovascular fitness by training the heart and lungs to work more efficiently. It can improve muscle strength and flexibility and reduce stress. Exercise can also help control or reduce the risk for certain medical conditions, such as coronary artery disease, stroke, high blood pressure, diabetes, osteoporosis, arthritis, peripheral vascular disease, and certain types of cancer. During exercise, we get energy from the breakdown of fat and carbohydrates.