Hrm..bolded I have...

A lack of sleep may cause a number of disorders including:

* aching muscles;

* blurred vision;

* Cardiovascular disease;

* Clinical depression;

* Colorblindness;

* Daytime drowsiness and naps;

* decreased mental activity and concentration;

* Depersonalization/derealization;

* weakened immune system;

* Dizziness;

* Dark circles under the eyes;

* fainting;

* General confusion;

* Hallucinations (visual and aural);

* hand tremors;

* Headache;

* Hernia;

* Hyperactivity;

* Hypertension;

* Impatience;

* Irritability;

* Lucid dreaming (once sleep resumes);

* Memory lapses or loss;

* Nausea;

* Nystagmus (rapid involuntary rhythmic eye movement);

* Psychosis; (oh..that could be fun)

* Pallor;

* slowed reaction time;

* Slurred and/or nonsensical speech;

* Weight loss or gain;

* Severe yawning;