An important ingredient to bodybuilding is 'Cardio
The health benefits of Cardio exercises are spectacular. It helps you take off unwanted weight (together with balanced eating), it strengthens your heart so that it doesn't have to work so hard in order to supply all of your body with blood and oxygen, it helps your lungs work better, it reduces the risk factor on some major disease and disease groups, like heart disease, diabetes, and high blood pressure. And it can improve your general feeling and quality of life by lowering stress and helping you get a good night's sleep.
There are countless cardio exercises that you can do to improve your fitness and serve as part of an overall body building plan. But the first thing that you need to do is to take advice with your doctor or medical professional to get guidance from him how aggressive you can be with your training, at the beginning and then afterwards. This will depend on your age, your history, your body, that is your overall you.
The basic idea of Cardio exercise is to do an activity such that it increases your heart rate from the resting zone into the 'training zone,' and to keep it up, traditionally for between 20 minutes to 40 minutes, three to five times a week, but all of this depends on the instructions that you get from the doctor. For example, running, or walking briskly, swimming, rowing a boat, jumping rope, can all be good cardio exercises.
Each different exercise has its advantages and disadvantages regarding the cardiovascular element, or the peripheral elements (things which have to do with the rest of the body). For example walking swiftly can be very beneficial as a cardio exercise, but not everybody has the frame of mind to keep up the pace for the prescribed amount of time, especially if you are walking the sidewalks of busy streets, and you have to deal with traffic when you cross a street at a corner, or if you make the fatal mistake of taking your cell phone with you. Taking your spouse with you can be great for quality time together, just make sure you're both keeping the pace.
Jumping rope is not an activity that many people can keep up for 20 minutes or more. Swimming also you have to be disciplined to keep swimming, laps for example, so that you have a constant elevation of your heart rate for the right time. People that run on the treadmill report that it is easier on their feet than sidewalks.
The optimum scenario is to vary your exercises and to avoid doing the exact same thing day in and day out. It's more interesting and fun that way, and also because you'll circumvent the problem of doing 'too much cardio,' at least on the same muscle group. In the gym you'll nave various machines that you can switch off on, like one day the treadmill, another day the elliptical. On the road you can run some days, and then go swimming once a week instead.