Cardio exercise is very important if you want to loose weight, but you may want to know at the first how much cardio to lose weight, what type of cardio exercise to lose weight, how hard to work to see weight loss results.
The best rule for weight loss is "You can lose weight if your calories intake is less than you calories consumed", you can reach this goal with a good combination of cardio exercise and a healthy diet. This can help you burn more calories and keep you the target heart rate for weight loss.