+Rigor mortis is the transient stiffness of the body's muscles after [Death](/wiki/death). It results from complex biochemical changes, primarily the depletion of [ATP](/wiki/atp) within muscle cells, preventing fiber separation and causing the characteristic rigidity. This temporary state is one of the recognizable signs of biological cessation.
+## See also
+- [Decomposition](/wiki/decomposition)
+- [Post-mortem](/wiki/post-mortem)
+- [Cadaver](/wiki/cadaver)
... 1 more lines