Fitness Disclaimer: The information contained in this site is for educational purposes only. Vigorous high-intensity exercise is not safe or suitable for everyone. You should consult a physician before beginning a new diet or exercise program and discontinue exercise immediately and consult your physician if you experience pain, dizziness, or discomfort. The results, if any, from the exercises may vary from person-to-person. Engaging in any exercise or fitness program involves the risk of injury. Mercola.com or our panel of fitness experts shall not be liable for any claims for injuries or damages resulting from or connected with the use of this site. Specific questions about your fitness condition cannot be answered without first establishing a trainer-client relationship.
For joints to work at their best, you need to keep them moving. Regular walking gives knee joints a workout, increases your muscle strength and can keep your bones strong, giving definition to calves, quads, hamstrings and lifting your glutes. Walking not only stimulates and strengthens bones, increases their density and helps maintain healthy joints, it can also fend off conditions such as arthritis and help prevent or alleviate back pain.
The best way to lose weight is to improve your diet and exercise more at the same time. If you’re overweight and want to shift some excess pounds, it's easy to fall into the trap of extreme dieting or exercise to lose weight. But either will be hard to stick to and can be bad for your health. With an extreme diet, you might not get the nutrients your body needs to function and with extreme exercise, you can get injured. What's important is to set yourself some realistic, achievable targets. 
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