A living person can swim and stay afloat in most situations, however a dead body cannot. As a result, people have always assumed that the dead body would sink, but it floats while the living person sinks.
What causes a living person to sink?
Only when the air inside the lungs is replaced by water can a person sink. The subject is submerged in the water once their lungs have been filled with water.
When The Body Sinks, What Happens?
He or she will remain submerged until the microorganisms in the cavity and the gut produce sufficient gases. The body can float because of these gases. Methane, carbon dioxide, and hydrogen sulfide, among other gases, are examples of the gases created. When compared to other portions of the body, the parts with the most germs travel faster. Depending on numerous conditions, bacteria activity might last up to a week or two.
Why do some bodies float upwards while others float downwards?
1. Facing down
The more buoyant body parts rise first, followed by the rest of the body. The body rotates upside down, with the arms and legs dangling below it. Because the head, arms, and legs can only droop forward from the body, this happens. The majority of the dead bodies float in this direction.
2. Upside upward
The dead body will more likely float face up if it has little limbs, as they create less drag. The body releases the gases and sinks again if it remains afloat. Because decomposition is still taking place, gases are accumulating again, and the body floats. The body may be uniformly bloated at this time, increasing the possibilities of it floating up