Hunger is the cheapest drug

[...]

Signs and symptoms of neuroglycopenia

• Abnormal mentation, impaired judgement
• Nonspecific dysphoria, anxiety, moodiness, depression, crying, fear of dying, suicidal thoughts
• Negativism, irritability, belligerence, combativeness, rage
• Personality change, emotional lability
• Fatigue, weakness, apathy, lethargy, daydreaming, sleep
• Confusion, amnesia, dizziness, delirium
• Staring, "glassy" look, blurred vision, double vision
• Automatic behavior
• Difficulty speaking, slurred speech
• Ataxia, incoordination, sometimes mistaken for "drunkenness"
• Focal or general motor deficit, paralysis, hemiparesis
• Paresthesia, headache
• Stupor, coma, abnormal breathing
• Generalized or focal seizures[...]

http://en.wikipedia.org/wiki/Neuroglycopenia

http://en.wikipedia.org/wiki/Hunger_%28motivational_state%29

http://en.wikipedia.org/wiki/Hunger#Politics_of_hunger