Introduction to exercise
After all that talk about the importance of diet, why exercise? Because, while it isn't as important as diet, it is still pretty hugely important to your overall health and fitness.
• Exercise determines HOW you gain or lose weight, and your body composition generally. You can diet down to, say, 120 pounds. But do you want to be 120 pounds of sleek, sexy muscle, or 120 pounds of gross, flabby loser? Exercise largely dictates the outcome.
• Exercise burns calories, which makes it easier to lose weight in conjunction with diet.
• Exercise promotes strength, endurance, and resistance to injury and illness, all of which are pretty great in and of themselves.
So exercise makes it easier to lose weight, and plays a big role in the composition of your body. There are two main kinds of exercise, cardiovascular (aka cardio, aerobic, etc.) and weight lifting (aka weights, lifting, resistance training, etc.)
Cardio: Any type of exercise that sustains an elevated heart rate consistently for a long period of time, such as running, cycling, or elliptical machine
Weight lifting: Pretty self explanatory, you push around heavy weights.