Approximately how long does it take to fix forward head posture?

The time it takes to correct head forward posture depends on your age and how long you have been holding your head in that manner. With vigilance, and no skeletal or permanent problems in the neck, the musculature can change in a few months. However, remember that your spine will need time to adjust to the changes in your head position and you may feel very fatigued. Stick with your plan and be patient. The alternative is a lifetime of progressively more advanced neck and spine problems. Consider all your efforts an investment in your future health and good posture.