Jesy Nelson has revealed her twin baby girls with fiance Zion Foster have been diagnosed with spinal muscular atrophy type 1. This is a rare genetic condition causing muscle weakness which can become fatal if left undiagnosed.

The loss of muscle mass, or muscle atrophy, is a relatively common condition in today's aging and increasingly sedentary societies. While the disuse of muscles is the most frequent catalyst for muscle atrophy, there are several other possible causes ...

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 conditions. Sudden or unexplained muscle loss calls for ...

Changes in motor units closely reflect disease severity in people with spinal muscular atrophy (SMA), suggesting potential new biomarkers.