Failing to fix your posture is usually a consistency and feedback problem, not a willpower problem, because the body reverts to old alignment whenever corrective effort is irregular, unguided, or invisible.
Posture correction is the gradual process of retraining muscles, joints, and movement habits to restore your spine's natural alignment, and it typically takes weeks to months depending on severity and consistency.
Neutral sitting posture is a seated position where the spine keeps its natural curves, the pelvis stays balanced, and load spreads evenly across the lower back rather than concentrating in one area.
Sitting vs standing for lower back pain is a load distribution question: sitting overloads the lumbar discs and posterior structures, while standing overloads the lumbar extensors and posterior chain muscles.
Most neck posture problems don't come from one big mistake. They come from a handful of small daily habits, repeated thousands of times, that quietly drift your head forward year after year.