Severe curvature can cramp the lungs, making it harder to take full, deep breaths.

A loss of core and back muscle strength (sarcopenia) reduces the body's ability to maintain an upright position.

Prolonged periods of sitting or hunching over devices like phones and computers can contribute to "postural kyphosis". Impact on Daily Living

A shifted center of gravity can lead to unsteadiness and a higher likelihood of falls.