(N/A) According to Hippocrates and the Indian Ayurveda system of medicine,health is considered a state of balance among the body's humors or fluids.
$1$. Hippocrates proposed that the human body contains four basic humors: $black \ bile$,$yellow \ bile$,$blood$,and $phlegm$.
$2$. These humors were associated with natural elements: $black \ bile$ (earth),$yellow \ bile$ (fire),$blood$ (air),and $phlegm$ (water).
$3$. It was believed that a person is in good health when these four humors are in a state of equilibrium.
$4$. An imbalance in these humors,such as an excess of one,was thought to lead to physical or mental illness,manifesting as poor health.
$5$. For instance,individuals with an excess of $black \ bile$ were historically associated with a 'hot' personality and a tendency toward fevers.