Question juridique clé
Whether the federal appeal met the reasoning requirements of Art. 42 LTF
Solution extraite
No. The filing merely expressed disagreement and alleged a worsening of health, without showing why the cantonal findings were manifestly inaccurate or unlawful.
Motifs extraits
An appeal must contain conclusions, reasons, and evidence, and explain succinctly how the challenged decision violates law. Mere criticism and factual assertions are insufficient.