Thus it would seem that it is the sun that imparts the iron and color
to the blood. These things being so, the customs of society that bring
sleeping hours into daylight, and working and study hours into the
night, are direct violations of the laws of health. The laws of health
are the laws of God, and "sin is the transgression of law."
To this we must add the great neglect of economy as well as health in
substituting unhealthful gaslight, poisonous, anthracite warmth, for
the life-giving light and warmth of the sun. Millions and millions
would be saved to this nation in fuel and light, as well as in health,
by returning to the good old ways of our forefathers, to rise with the
sun, and retire to rest "when the bell rings for nine o'clock."
The observations of medical men, whose inquiries have been directed
to this point, have decided that from six to eight hours is the amount
of sleep demanded by persons in health. Some constitutions require as
much as eight, and others no more than six hours of repose. But eight
hours is the maximum for all persons in ordinary health, with ordinary
occupations. In cases of extra physical exertions, or the debility of
disease, or a decayed constitution, more than this is required.
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