Aerobic exercise is more intense, and will have to be more scheduled and organized. Aerobic exercise includes activities such as jogging, cycling, swimming, and walking.
This type of exercise has a variety of health benefits beyond that of diabetes control. In addition to increasing insulin sensitivity, aerobic exercise also increases lung capacity, immune function, blood pressure, and cardiac function. This type of exercise will also help with weight control, as you can burn hundreds of calories in less than an hour depending on your exercise of choice.
Aerobic exercise also releases various "feel good" chemicals in the brain that can give you a more positive outlook in general. It can provide structure to the day and give you something to look forward to. Aerobic exercise may be difficult in the beginning, but once you get in the swing of things it is an incredibly rewarding experience.