A weak core is a lack of strength and endurance in the deep stabilizing muscles of the trunk, which forces the lower back to absorb load it was not built to carry, often showing up as recurring, non-specific back pain.
Morning lower back pain is stiffness or aching in the lumbar spine that appears on waking and usually eases within 30 to 60 minutes of movement, caused by overnight immobility, sleep posture, or an unsupportive sleep surface.
Lower back pain from sitting is a postural and mechanical condition where prolonged hip flexion, pelvic tilt, and disc compression overload the lumbar spine, causing pain that worsens the longer you sit.
Lower lumbar pain is discomfort, aching, or stiffness in the lowest section of the spine (vertebrae L1-L5), typically caused by muscle imbalances, postural dysfunction, or repetitive mechanical stress rather than structural damage.
A dowager's hump is a visible rounded protrusion at the junction of the neck and upper back, caused by a combination of postural misalignment, spinal compression, and soft tissue changes at the cervicothoracic junction.
