People Who Commit Suicide Have Abnormal Chromosomes, Mitochondria

Many people who commit suicide have genetic abnormalities. Specifically, young people who commit suicide are likelier to have short chromosomal telomeres, while older people who commit suicide tend to have excess mitochondrial DNA....
http://www.acsh.org/news/2017/06/14/people-who-commit-suicide-have-abnormal-chromosomes-mitochondria-11423

Unexpected Risks Found In Editing Genes To Prevent Inherited Disorders

In September, reproductive endocrinologist John Zhang and his team at the New Hope Fertility Center in New York City captured the world's attention when they announced the birth of a child to a mother carrying a fatal genetic defect. Using a technique called mitochondrial replacement therapy, the researchers combined DNA from two women and one man to bypass the defect and produce a healthy baby boy — one with, quite literally, three genetic parents.

It was heralded as a stunning technological leap for in vitro fertilization, albeit one that the team was forced to perform in Mexico, because the technique has not been approved in the United States....
http://www.npr.org/sections/health-shots/2017/01/01/507244429/unexpected-risks-found-in-editing-genes-to-prevent-inherited-disorders