A personal trainer is a professional who educates people about physical fitness. If you want to lose weight, get healthy and/or build muscle, hiring a personal trainer can be a step in the right direction. A good trainer can help you set up a program that meets your goals and teach you the best way to exercise.

A personal trainer should be, at the least, educated and certified through a reputable fitness organization (see below). This person's job is to assess your fitness level, set up a program for you and keep you motivated. He or she will push you past your comfort level--something difficult to do on your own. A trainer also provides:

• guidance on reaching your goals
• education about strength training, cardio and basic nutrition
• a reason to show up at the gym each week
• accountability
• ways to help track your progress

Each session lasts about an hour. The first meeting is devoted to assessing fitness level, body measurements, exercise and health history and goals. Be prepared to step on the scale, have your body fat tested and answer specific questions about your goals. After that, you'll spend most of your time on strength training and cardio.