There is no sure way to prevent restless leg syndrome. Controlling diseases and conditions that contribute to the syndrome can help limit the intensity of the symptoms. Reducing stress levels may also help decrease symptoms.
The most common long-term effect of restless leg syndrome is difficulty sleeping. This can reduce a person's quality of life. It can also result in the inability to sleep, called insomnia, and problems that stem from lack of sleep, such as depression, violence, and accidents.
Restless leg syndrome is not contagious but does tend to run in families.