Idealism and the desire to help are key motivators behind the decision to become a police officer. After 2 to 3 years, however, many officers become disillusioned when they realize they cannot always help and must just 'mop up.' Furthermore, police officers tend to become totally immersed in their work, narrowing their interests and social lives. Bitterness over losing a promotion is common. Many cops repress their emotions for so long that they cannot work out personal problems. Nearing retirement, they complain they have lost their family and health because of their work and have nothing left. Dr. Lawrence Blum suggests four ways to prevent this situtation: do not give up on family, maintain hobbies and other interests outside of police work, keep physically fit, and communicate feelings. He emphasizes that even older, 'burned out' police officers can change their lives.