Starvation is a severe deficiency in caloric energy intake, below the level needed to maintain percentage of body fat and general health, one medical study estimates that in adults complete starvation leads to death within 8 to 12 weeks.
Aden, Yemen (CNN) Ahmed Helmi spends most of his day lying on a thin sheet on a concrete floor in a dusty village in Yemen's Lahij Province.
Both adults or children can act very much out of character. They might be irritable or apathetic or lethargic. “Starvation is a state of threat,” says.