Partial paralysis occurs when nerve signals between the brain and specific muscle groups become interrupted, resulting in weakness or inability to move certain body parts while others remain ...

Medically reviewed by Amy Kwan, PT Lower right back pain can come from issues with muscles, discs, joints, or internal organs.  Numbness, tingling, or weakness with lower right back pain is often a ...

"Asthenia" is the medical term describing weakness or a lack of energy and strength either across the entire body or in specific body parts. It often develops in people with cancer or anemia but can ...

Loss of muscle mass (muscle atrophy) can be a result of aging or lifestyle habits, like being inactive or eating a poor diet. Muscle loss can also point to hormone abnormalities or underlying health ...

Lower spine pain can develop due to sprains and strains of muscles or changes to the discs in the lower back. Conditions that affect the facet joints of the vertebrae may also cause lower spine pain.