2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49632We review in this talk some aspects of the exciting field of hyperon polarization phenomena in high energy reactions, over the last twenty years or so. On the experimental side, a large amount of significant polarization data for hyperon and antihyperon inclusive production, has been accumulated in a rather broad energy range. Many theoretical attempts to explain that have been proposed and we will discuss some of them, showing their strong limitations in most cases.6 pages, Latex, hyperon99_paper.styHigh Energy Physics - Phenomenologytext