Your posture has a direct effect on your long-term health, the US National Library of Medicine says. Good posture means your spine is correctly positioned at three natural curves: your neck, middle back and lower back.
The agency says poor posture can lead to:
* Undue wear on the spine, making it more fragile and prone to injury.
* Neck, shoulder and back pain.
* Decreased joint flexibility and mobility.
* Imbalance and increased risk of falling, problems with digestion.