What happens to the pressure in human lungs deep waters?

The pressure in human lungs increases as the diver descends deeper into the water. This is because the water exerts pressure on the body from all sides, and the pressure increases with depth. The pressure in the lungs must be equal to the pressure of the water outside the body, in order to prevent the lungs from collapsing.

At a depth of 33 feet (10 meters), the pressure in the water is twice the pressure at the surface. This means that the pressure in the lungs must also be twice the pressure at the surface, in order to prevent the lungs from collapsing. The diver's body compensates for this increased pressure by producing more mucus in the lungs, which helps to keep the lungs from collapsing.

As the diver descends deeper into the water, the pressure continues to increase. The diver's body must continue to produce more mucus in order to keep the lungs from collapsing. However, there is a limit to how much mucus the body can produce. At a depth of about 300 feet (90 meters), the pressure in the water is so great that the diver's body can no longer produce enough mucus to keep the lungs from collapsing. This is why divers cannot dive deeper than 300 feet without the use of special equipment, such as a diving bell or a submarine.