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When most of us hear the word "cult," we see a bunch of brainwashed zombies feeding their children cyanide-laced fruit drink, mass murders, a burning compound in Waco, Texas -- it's not a pretty picture. But is it a true picture? What exactly is a "cult," and how is it different from a "religion"? Are all cults dangerous? Are people who join destructive cults mentally disturbed, or are all of us equally susceptible?

In this article, we'll ­separate fact from propaganda and ­­­learn what a cult actually is, what practices characterize a destructive cult and look at some of the more notable cult incidents in recent history.

What's a "Cult"?

­ Courtesy Getty Images Shelly Katz / Liaison The Branch Davidian compound explodes in April 1993 following a standoff between the cult and the FBI. See more pictures of cults.

­ The cults that make the news and drive fear through the hearts of parents sending their kids to college are the exception, not the rule. At its most basic, a cult is simply a small, unestablished, non-mainstream religious group that typically revolves around a single leader. The American Heritage Dictionary defines "cult" this way:

1. A religion or religious sect generally considered to be extremist or false, with its followers often living in an unconventional manner under the guidance of an authoritarian, charismatic leader.

2. A system or community of religious worship and ritual.

If You Need Help If you think you may be involved in a destructive cult, or you've recently left one, there are a lot of resources out there ready to help you. They can assist you in understanding the situation and taking action. Here are just a few organizations that specialize in helping people recover from cult involvement: reFOCUS Support Group Locations Post-Cult Trauma Cult Information Service

­ The first definition is closer to the common usage of the term today, but you'll notice there's no mention of brainwashing, murder or mass suicide. There is no meaningful difference between a cult and a religion in terms of faith, morality or spirituality. The primary differences are that a "cult" operates outside of mainstream society, often calls on its followers to make an absolute commitment to the group and typically has a single leader, whereas a "religion" usually operates within mainstream culture, requires varying levels of commitment from its members and typically has a leadership hierarchy that, in practice, can serve as a series of checks and balances.

But destructive cults are a different story. There is a big difference between a destructive cult and a non-destructive religion (or a non-destructive cult). A destructive (or totalist) cult exploits its members' vulnerability in order to gain complete control over them, often using unethical psychological techniques to bring about thought reform. It can be said that a non-destructive religion or cult attempts to alleviate its members' vulnerability through spiritual guidance in an effort to help them exercise control over their own lives.

While most small, non-mainstream religions are harmless, certain circumstances do make them an easy breeding ground for destructive practices. The People's Temple began as a charitable organization in the United States that ran a free medical clinic and drug rehabilitation program. But you probably know it as the doomsday cult whose Kool-Aid mass suicide/murders took more than 900 lives in Jonestown, Guyana, in 1978. How can something that began with so much hope go so very wrong? There's a lot of speculation about what happened to the members of The People's Temple, but for the most part, what went wrong is what goes wrong with most destructive cults: the leadership.

Photo courtesy Getty Images Don Hogan Charles / New York Times Co. Reverend Jim Jones, leader of The People's Temple, and his family in 1976

Photo courtesy Getty Images David Hume Kennerly Nine-hundred members of The People's Temple (including more than 200 children) dead after Jones ordered a mass murder/suicide in 1978

It's really a two-part problem. First, many of these religions are founded by a single person who retains a position of exclusive power within the organization, and power tends to corrupt even the most ethical among us. In the case of The People's Temple, there is evidence that its leader, Reverend James Warren Jones, was abusing prescription drugs and becoming increasingly paranoid through the 1970s. Next, because these groups operate outside the mainstream, there is usually no one checking up on their operating procedures, so a corrupt or mentally unstable leader is free to exploit his followers to his heart's content. In addition to this authoritarian leadership structure, some primary characteristics of a destructive cult include:

• Charismatic leadership
• Deception in recruiting
• Use of thought-reform methods
• Isolation (physical and/or psychological)
• Demand for absolute, unquestioning devotion and loyalty
• Sharp, unsurpassable distinction between "us" (good, saved) and "them" (bad, going to Hell)
• "Inside language" that only members fully understand
• Strict control over members' daily routines

For the remainder of this article, when we refer to techniques employed by "cults," we're talking about destructive cults, not the small religious groups that keep to themselves and don't hurt anybody. In the following sections, we'll examine destructive cults more closely and find out how they function. Let's start with the leadership structure.

It Takes All Kinds Not all destructive cults are religious in nature. They can be driven by political or financial goals as well. In the end, it's all about subjugating members' individuality to achieve the desires of the leader(s), whether that means reinforcing a self-proclaimed messianic status, participating in destructive activities in the name of political revolution or simply filling the leader's pockets with their hard-earned money. There are radical political groups, commercial pyramid schemes and self-help seminars that employ similar recruiting and indoctrinating techniques as destructive religious cults, targeting people with certain vulnerabilities and then playing on those vulnerabilities to keep them "in the fold." The end result is a "convert" who will blow himself up in the name of destroying capitalism, try to get all of his loved ones to buy into the same business deal that he is losing his life savings on, or keep signing up for an unending series of lectures, seminars and retreats that promise psychological and spiritual healing but really only drain his bank account.