“Spot reduction” is a myth and you can’t loose belly fat by just doing sit-ups, nor can you make your upper legs slender by only doing squats. The same applies to your chest, hitting the bench press is not the miracle exercise.
To get a six pack, you actually have to reduce the overall percentage of fat in your body by following a strict exercise routine and following a healthy diet.
However, there is one shortcut you might have overlooked, it has to do with posture. Bad posture makes you look fatter and out of shape.
Correcting a poor posture can make you look slimmer and fitter. Look at the illustrations on the right, This is the perfect example of how important posture is, not just from a functional point of view but from an aesthetic one. The posture shown on the left is called kyphosis-lordosis.
Kyphosis defines an outward curve of the back (hunchback) and lordosis, an inward curve in the lumbar region of the spine (lower back).
Developing kyphosis-lordosis is mainly due to sitting at a desk and working on a computer for prolonged periods since it shortens and tightens the hip flexors, causing the pelvis to tilt forward and the lower back to curve.
Looking at your computer while extending your head forward (which most people do) causes muscles in the upper back to shorten, creating a hunchbacked appearance. That’s how posture can give you the appearance of a marked belly.