Being overweight is a common trait these days and there is not enough help out there. Find out how you can shed those pounds and improve yourself from within.
They are good for cardiovascualr workouts, and if you use it consistently and create a slight calorie deficit in your diet you should get results.
You also need strength training - it will help you get results faster and give you strength for daily activities/strengthen your bones and body to prevent age-related weaknesses like osteoporosis, etc.
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While we may not be able to control all that happens to us, we can control what happens inside us.
- Ben Franklin