Why does resistance of human body decrease to electricity when body is wet?

Answer 1

If you increase resistance, current is restricted (river is damed up).

If you decrease restistance, current flows faster (river is wide and open).

With water on our skin the current can travel across our skin instead of having to move through our bodies. The current has found a new path. Not inside our bodies but outside our bodies where there is much less resistance.

Which is better?

A large highway with a traffic jam

or the side road next to the highway with the traffice jam

The side road is effected by the traffic jam, but is still faster than the highway.

Answer 2

The resistance will decrease, but there isn't a standard for such kind of measurement. What it matters is that a wet body lets an electrical current to flow easier through the body making it much more dangerous. So, don't forget to ground your shower.

JW70