The damage caused by bullying persists much longer then the bullying itself

According to a longitudinal British study just published in the American Journal of Psychiatry, the detrimental effects of bullying can lasts for decades and influence a person's socioeconomic status, social relationships, often leading to a poorer quality of life as far out as in their 50s.
As reported by the researchers of the study;

The impact of bullying victimization was not limited to indicators of adult health. Children who  were frequently bullied had lower educational levels at midlife, and men in the labor market were  more likely to be unemployed and to earn less than their peers. Social relationships in adulthood were affected too; children who were bullied were at increased risk of living without a spouse or partner at age 50, were less likely to have met up with friends in the recent past, and were less  likely to have access to social support if they were sick. Bullying victimization also affected adult well-being; being bullied was associated with lower perceived quality of  life at age 50 and lower satisfaction with life so far. Cohort members who had been frequently bullied also anticipated less life satisfaction in the years to come. When  controlling for childhood confounders, bullying victimization became marginally associated with unemployment (for men), net pay (for men), and meeting friends in the  last 2 weeks. All other associations remained significant.
 
In this study data was collected from almost 98% of all births in one week of 1958 in Scotland, England and Wales, leading to about 18,000 participants. Subsequent follow-up were then carried out at age 7, 11 and 16 years in their childhood, and then at ages 23, 33, 42, and 50 years in adulthood. To assess presence and frequency of bullying during childhood researchers interviewed parents. Whereas the psychological distress resulting in adult life was assessed through various standardized test.

It is clear from these observations that in addition to effectively reducing incidents of childhood bullying efforts must be made to minimize its effect on mental, emotional and physical.

To learn more about bullying and to find help please check Stopbullying.gov


References:
Adult Health Outcomes of Childhood Bullying Victimization: Evidence From a Five-Decade Longitudinal British Birth Cohort (American Journal of Psychiatry)
Mental And Physical Toll Of Bullying Persists For Decades (Health News from NPR)