It has been a basic tenet that an individual who uses substances heavily will become addicted. There are reports, however, of people becoming addicted to a substance with exposure only once or a few times. Some experts believe people are born with the predisposition to become addicted. Children of addicts have a greater probability of becoming addicts themselves than children whose parents are not. Thus, the potential for addiction may be hereditary. On the other hand, a psychological problem may lead the individual into addiction. The need for instant gratification, a feeling of being socially ostracized, and an inability to cope with the downfalls of life have all been cited as possible springboards to addiction.