Human Body Systems: Enzymes, Electrolytes & Metabolism

Body systems rely on a balance of electrolytes, enzymes, and hormones like cortisol. Understand fat metabolism, urinary output, and energy system functions.

Patient's hand while explaining for doctor

Diseases That Affect Human Body Systems

Published Aug,14 2017 | By Norene Anderson

Diseases and illnesses target all body systems, such as the circulatory, digestive, reproductive, endocrine, neurological, skeletal and muscular systems. Sources of diseases include genetics, bacteria, poor nutrition, viruses, parasites and fungi.