Water is called a universal solvent because of its ability to dissolve different types of substances.
The basic unit of life is cell and a large portion of living cell (60%) is made up of water, this is because cells need water to survive. Biochemical reactions are always ongoing in the living cells and water act as solvents under which these reactions occur. Because of the high solubility of water, it is able to dissolve various substances needed by the body, this makes it easy for the substance to participate in chemical reactions and to move from one point to another. Without water biochemical reactions will not be able to occur in cells and this will lead to the death of the cells.
Humans are made up of about 60% of water, our cells need water to survive. Biochemical reactions are always happening in the living cells in our bodies, water is the solvents in which these reactions perform. Water is a universal solvent due to its capability to dissolve substances. Due to the high solubility of water, its able to dissolve the substances that each body needs and it helps the substance participate in the chemical reactions. Water is the most important part of the human body, without it biochemical reactions could not perform which causes death.