Whether you love cardio or loathe the mere thought of it, the truth is that it's good for you. Some of us will happily go on a run, ride a bicycle, or do a Zumba class, but others much prefer lifting weights. In an ideal world, you'd include both types of workout in your exercise routine, but what if you don't?
What happens if you only do cardio and no other type of exercise? In this gallery, you'll get to know the answer to this and many other questions. Click on.