Mind, Character and Personality, Volume 2 - Ellen G. White

Chapter 49
Grief
Breaks Down the Life-forces.—Grief,
anxiety, discontent, remorse, guilt, distrust, all tend
to break down the life-forces and to invite decay
and death.... Courage, hope, faith, sympathy, love,
promote health and prolong life.—The Ministry of
Healing, 241 (1905).
Impairs Circulation.—Sadness deadens the
circulation in the blood vessels and nerves and also
retards the action of the liver. It hinders the process
of digestion and of nutrition, and has a tendency to
dry up the marrow [interior substance] of the whole
system.—Lt 1, 1883.
Cannot Remedy a Single Evil.—While grief
and anxiety cannot remedy a single evil, they can
do great harm; but cheerfulness and hope, while
they brighten the pathway of others, “are life unto
those that find them, and health to all their flesh”
147