Sometimes I feel out of place lifting weights because I only weigh a buck 45, but you have to remember that people come in all different sizes. Not all people desire to be so massive they can't even straighten their arms, or so thin they disappear when viewed from the side. There are probably twice as many reasons why you should participate in some type of exercise regularly as there are to give up and quit. The response most people give is to stay in shape or to just look good. Both of these reasons are excellent for boosting self-esteem or, unfortunately, egos.
Regular exercise is also a great way to relieve stress.
At first, regular physical activity can seem cumbersome and inconvenient, but after a while it can become a fun routine and slightly addicting. A gym or exercise facility is also a great social setting and makes it easy to meet new people and make friends. The vast plethora of funky exercise equipment also doubles as a great conversation piece. So whether it is full-court basketball or a casual stroll around the track with a friend, regular exercise combined with an adequate diet can be beneficial to both the body and the mind. I'll see ya there.