What happens to the human body after death: a scientific explanation (video)

Human death is the cessation of vital activity of the body. It is characterized by the cessation of heart, breathing, and brain activity. Death can be caused by various reasons.

The decomposition ecosystem promotes a cascade of reactions that turn the body into a skeleton, IFLScience writes.

Read also: Scientists have found out what a person feels a moment before death

After the human heart stops beating, the body begins to slowly decompose at the cellular level. Then bacteria, animals, and even the body itself begin to digest the internal organs and tissues.

After clinical death, when the heart stops beating, the cells lose their source of oxygen for energy production. Cells can switch to anaerobic respiration, which produces lactic acid and is an energy-efficient process. The cellular transport mechanism stops working, and the cells lose the ability to exchange with the extracellular environment.

When cells begin to break down, it leads to necrosis, which is an irreversible process. The rupture of lysosomes in the cell leads to the release of enzymes and lysosomes to the outside, which damages neighboring cells.

The internal conditions of the cell deteriorate, which activates the cell death cascade.

How the body decomposes and how the decomposition ecosystem works:

Bacteria in the intestines begin to consume body tissue, which leads to the breakdown and formation of volatile organic compounds.

The smell of a dead body comes from volatile organic compounds that attract insects.

Death is defined as a failure of biological systems that prevents a return to chemical equilibrium. Simply put, it is the process where an organism breaks down and the decomposition ecosystem evolves to provide new life.

This unique perspective on death expands our understanding of what happens after the last moment.

Earlier, scientists explained why some people die in their sleep.

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