Loss of muscle mass, also called muscle wasting or atrophy, can happen gradually as part of getting older or more suddenly due to underlying medical conditions. Other factors can contribute, like ...

Spinal muscular atrophy with respiratory distress (SMARD) is a rare genetic condition that typically affects infants and children. It causes muscle weakness and breathing problems. Spinal muscular ...

(SMA) causes progressive muscle weakness and, without treatment, can limit life expectancy to just two years. The milestone means the petition, to include SMA in post-birth baby checks for serious ...