It doesn't take major strength training of bodybuilding proportions to benefit the body. Nope, a little light lifting can work wonders for a body in need of a little revamping.

Lifting light free weights -- think two to four pounds for starters -- not only adds variety to a stale workout routine, it also can increase your metabolism, improve your posture, and help you lose weight. Another bonus: Free weights are less expensive and more versatile than weight machines. They also work the body in ways machines can't by forcing you to focus on balance and core strength.

Ready to try some light lifting? Take a peek at these exercises, which focus on the shoulder and back muscles but also engage all sorts of other areas. Give them a try, and you'll see what I mean. Keep this in mind as you get started: Position and precision of motion are more important than how many pounds you lift.