A treatise on critical days — the specific days in the course of a disease when significant changes are expected. Galen develops a predictive system based on numerical cycles, drawing on Hippocratic observation and his own clinical experience.
Start ReadingThe theory of critical days. Galen establishes the principle that diseases follow predictable numerical cycles, with changes occurring on specific days.
The specific critical days and their significance. Galen identifies which days are most dangerous and how to predict the timing of disease turning points.
Clinical applications of critical day theory. Galen shows how to use the critical day system in practice, adjusting for individual variation.