Adverse Childhood Trauma 

The original study published in 1999 was conducted at Kaiser Permanente Insurance Company in conjunction with the CDC ( Center of Disease Control) between 1995-1997.
In the study, 18,000 people were asked about childhood trauma in three categories:
Abuse, neglect and household challenges.
 
Below is the prevalence breakdown for each category:
Physical Abuse: 28%
Emotional Abuse 11%
Sexual Abuse 21%
Physical neglect 10%
Emotional neglect 15%
Mother Treated Violently 13%
Substance Abuse  27%
Mental Illness  19%
Separation / Divorce 23%
Incarcerated Household Member 5%
 
All in all, 61% of the adults who participated in the study experienced at least one childhood trauma in the categories that were studied.
When comparing people who reported 4 trauma types or more verses people with zero traumas in the categories studied, people with 4 traumas or more had 3 times more likelihood to develop many physical symptoms, double the likelihood to develop obesity and in average died 20 years younger.
 
Findings also demonstrated that they typically suffered more from
Accidents
Depression anxiety and fear
PTSD
Suicide
Unwanted pregnancies
AIDS
Cancer
Diabetes
And heart disease
On average they were less educated, had lower incomes and struggled more with occupational issues

The main conclusion was that the tremendous negative effect adverse childhood trauma has on one’s physical health extends far beyond childhood. In fact, adverse childhood trauma effects people for the rest of their lives.
The good news in that proper therapy holds the power to turn around the numbers and reduce the negative effect even in adulthood.

The ACE study proves once again that body and mind are closely interconnected. Trauma affects the entire system. Therefore, therapeutic approaches should address both body and mind as such.
Emotional healing is an extremely significant component in healing childhood trauma, related physical disease and other unhealthy lifestyles and behaviors.
 
Link to article on CDC web: https://www.cdc.gov/violenceprevention/childabuseandneglect/aces/fastfact.html