Working out? It totaly depends on the person's psychology. Is being healthy worth the effort it takes? Is looking good worth the effort it takes? Are you wanting to do something with your life that requires physical fitness? If the answer is "yes" to any of these questions, you have your answer.

The answer might change in different periods of your life as well. You could take a year off to be as fat and lazy as you want, just because you feel like it. Maybe the next year you wanna get some nookie, or take a job that is demanding physicaly, so you shape up.

Personaly, I train to fight in MMA (I want to be in the UFC some day as my boyhood dream). I NEED to be in shape, so I spend about 4-5 hours a day training in various ways, being sure not to overtrain, and give good rest time for recovery. It takes alot of work to be a successfull, steroid free fighter, so to me it is worth it, but I can't answer for the rest of you.