This edition explains that protoplasm behaves like a chemical substance, with heat and energy arising from chemical reactions. It links fatigue, sensation, and growth to the same chemical processes that govern matter and metabolism.

Readers will also see how glands influence the body's tone, how drugs and poisons interact through chemical affinities, and why small changes in chemical balance can affect health and vitality.

See how the body’s heat comes from chemical activity and how metabolism ties to daily energy.
Understand how temperature shifts raise or lower biological performance.
Learn about chemical tone in tissues and the role of glands in maintaining health.
Explore how medicines and poisons work by binding with tissues at the chemical level.

Ideal for readers curious about how biology and chemistry intersect in living systems.

"About this title" may belong to another edition of this title.

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