My bf and I have found a great form of exercise. We bike 6 miles to a Lake, run a 5K, and bike back.
We do this routine 3 times a week. This is fun because running by itself can be uninteresting, so we added biking to our exercise. VERY VERY FUN.
We also have a good diet, make sure we eat fish and a low fat diet. I think for anyone who is trying to get into shape, try this exercise. it is very great and only requires 3 times a week .