The basic and functional unit of the human body. A group of cells forms a tissue, and a group of tissues forms the organ. All organs work together and form the organ system.

66% of the body’s water content around and/or within the cells. Water places an important role in the body.

• Water acts as a solvent
• Ionizes acids, bases, and salts
• Absorbs heat and regulates temperature
• Permitting exchange, excretion, and secretion through the cell membrane

Electrolytes are salts that play an important role in the body as well. They are chemicals that carry electric impulses. Water and electrolyte balance is important in the body. Imbalance leads to dehydration which will, in turn, make you thirsty or cause illnesses like heat strokes.