Why we Cannot dive deeper than 40 meters?

At depths greater than 40 metres (130 ft), a diver may have only a few minutes at the deepest part of the dive before decompression stops are needed. In the event of an emergency, the diver cannot make an immediate ascent to the surface without risking decompression sickness.

Why do you use more air the deeper you dive?

The deeper a diver goes, the less time they have before their tissues absorb the maximum allowable amount of nitrogen. Because pressure becomes greater with depth, both air consumption rates and nitrogen absorption increase the deeper a diver goes.

What happens when you dive too deep?

In extreme cases, it can cause paralysis or death if the bubbles are in the brain. Nitrogen narcosis: Deep dives can cause so much nitrogen to build up in the brain that you can become confused and act as though you’ve been drinking alcohol. Narcosis usually happens only on dives of more than 100 feet.

Do your lungs shrink when you dive?

In the first 30 or so feet underwater, the lungs, full of air, buoy your body toward the surface, forcing you to paddle as you go down. You feel the pressure on your body double at 33 feet underwater. At this depth, the contracting air will shrink your lungs to half their normal size.

What is the deepest dive by a human?

The deepest dive ever (on record) is 1,082 feet (332 meters) set by Ahmed Gabr in 2014. That depth is the equivalent of approximately 10 NBA basketball courts aligned vertically. In terms of pressure, that’s about 485 pounds per square inch. Most people’s lungs would be crushed at that depth.

Can divers dive to the Titanic?

You cannot scuba dive to the Titanic due to its depth at 12,500 feet. Air consumption: one standard tank lasts 15 minutes at 120 feet. Supply for 12,500 feet would be impossible to carry even with a team. The deepest dive on record with special equipment, training and a support team is 1,100 feet.