Hunger is the physical sensation of desiring food.

On October 11, 2010, it was reported that the number of malnourished people in the world exceeded 1 billion people, about a sixth of the world's total population.

Six million children die of hunger every year.World Food Programme statistics presented through TeleSUR on 11 January 2012 indicated that approximately every 6 seconds one kid dies of hunger.

According to estimates by the Food and Agriculture Organization of the United Nations (FAO) there were 925 million undernourished people in the world in 2010. This was a decrease from an estimate of 1,023 million undernourished people in 2009. The same organization reports that there were 923 million malnourished people in the world in 2007, which in turn represented an increase of 80 million since 1990. The FAO purports that the world already produces enough food to feed everyone — 6 billion people — and could feed double — 12 billion people.

As the number of hungering people is a subset of the under- or malnourished number, the number of people in hunger is smaller. The statistics here may provide some indication but should not be quoted as numbers or shares of people in hunger.

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Vice is a practice or a behavior or habit considered immoral, depraved, or degrading in the associated society. In more minor usage, vice can refer to a fault, a defect, an infirmity, or merely a bad habit. Synonyms for vice include fault, depravity, sin, iniquity, wickedness, and corruption. The modern English term that best captures its original meaning is the word vicious, which means "full of vice". In this sense, the word vice comes from the Latin word vitium, meaning "failing or defect". Vice is the opposite of virtue.

Depending on the country or jurisdiction, vice crimes may or may not be treated as a separate category in the criminal codes. Even in jurisdictions where vice is not explicitly delineated in the legal code, the term vice is often used in law enforcement and judicial systems as an umbrella for crimes involving activities that are considered inherently immoral, regardless of the legality or objective harm involved.

In the United Kingdom, the term vice is commonly used in law and law enforcement to refer to criminal offenses related to prostitution and pornography. In the United States, the term is also used to refer to crimes related to gambling, alcohol, and drugs.