Dehydration occurs when the body does not have enough water and this can happen rapidly in extreme heat or through exercise. Symptoms of dehydration can include headaches, lethargy and hallucinations. In extreme cases, dehydration may result in death.

Can dehydration cause mental confusion?

Severe dehydration can lead to confusion, weakness, urinary tract infections, pneumonia, bedsores in bedridden patients, and other serious conditions. Drinking enough fluids helps the body digest food, eliminate waste, regulate temperature through sweating, and maintain blood pressure.

What triggers hallucinations?

There are many causes of hallucinations, including: Being drunk or high, or coming down from such drugs like marijuana, LSD, cocaine (including crack), PCP, amphetamines, heroin, ketamine, and alcohol. Delirium or dementia (visual hallucinations are most common)