Everything you do (or don't do) matters. For every "effect", there is an underlying "cause" behind it. For example, heart disease, diabetes, hypertension, high cholesterol, obesity are all for the most part, tied directly to our lifestyle. Poor eating habits coupled with a sedentary lifestyle (cause) over time creates unwanted health issues (effect.) The bottom line is that all of the aforementioned problems and many others can likely be avoided or controlled by a more active and nutritious lifestyle. Our lifestyle determines how we look, feel, and perform, which in turn affects the quality, (and possibly quantity) of our lives. Often times, the undesirable effects created by a sedentary lifestyle do not show up right away. Rather, they tend to develop and worsen over time.
Improving your health and fitness begins with knowledge. Knowledge empowers you to make those key positive decisions on a daily basis which ultimately determine how you look, feel, and function. It is not possible to improve that which we know little or nothing about...health and fitness are certainly no exceptions to that rule. Therefore, professional guidance can assure you higher levels of success in a shorter period of time and with a lower risk of potential injury.
Newton's First Law, that of Inertia, states that a Body in motion stays in motion, while a Body at rest stays at rest until acted upon by another force. How true of OUR bodies. We now live in a highly technological world, which allows us many conveniences, eliminating much activity in our lives. Remote controls, dishwashers, clothes washers and dryers--just a few examples. Increasingly higher numbers of jobs are now completely done from a desk. It is not uncommon for an individual to drive to work (sitting), take an elevator from the parking ramp to their floor, sit in their office or cubicle for eight hours, then take the same elevator back to the parking garage in order to get back into the car and drive towards home, stopping only to visit the drive-through window of a fast-food restaurant to pick up dinner. Then, upon returning home, the average person watches 3-4 hours of television per day, controlled by a remote, before going to bed. Perhaps your day allows for more activity than this example, but the harsh reality is that 21st century bodies are for the most part not getting much motion all. Regular exercise is now a necessity, an activity "supplement" to proactively ensure our body gets the movement it needs and desires to be fit and healthy. Although Newton did not have the human "body" in mind with regard to his law of inertia, one can clearly see that we now have very few outside "forces" acting upon us, and we therefore remain at "rest."
Nate Hartwig, CSCS, NASM-CPT/CNC