%0 Journal Article %T Metastability of life %A V. I. Marchenko %J Physics %D 1999 %I arXiv %R 10.1134/1.559178 %X The physical idea of the natural origin of diseases and deaths has been presented. The fundamental microscopical reason is the destruction of any metastable state by thermal activation of a nucleus of a nonreversable change. On the basis of this idea the quantitative theory of age dependence of death probability has been constructed. The obtained simple Death Laws are very accurately fulfilled almost for all known diseases. %U http://arxiv.org/abs/physics/9910008v1