Just as there are many accepted normal measurements for the human body (temperature of 98.6°F, blood pressure of 120/80mmHg, 20/20 vision, etc.), there is also a standard for normal structure. When it comes to normal, we aren’t expecting everyone to be perfect. However, if your head is displaced 30mm beyond what is considered acceptable, you have Anterior Head Displacement which may result in Anterior Head Syndrome. Your head shifting forward is no different than your car being out of alignment, or the foundation of your house sinking on one side by just a few inches. Because the underlying structure has shifted, this deviation of your skull puts abnormal stress on the nerves, muscles, tendons, ligaments, discs, and bones of your body which can lead to Secondary Conditions.