Well, dehydration can be very serious in some cases. The effects of dehydration can be very harmful to a person.
A person who is dehydrated will have a hard time thinking, and their body will not function properly.
If a person is dehydrated for a long time, they can die if they do not receive treatment.
Dehydration can cause many other problems, such as confusion, dizziness, and even organ damage.

Dehydration is a very serious condition that can lead to death if the person is not treated soon enough.
This means: drink water!
Especially if you are ever doing any intense physical exercise.