“DNA is very sensitive to stress and the environment. When a body adapts to constant, overwhelming stress—not a car accident or a bad flu, but long-lasting trauma—the epigenome changes. Trauma can turn on a gene that responds to the smell of cherry blossoms, for example. Or turn off a gene that regulates our emotions. It might turn on a gene for fear.”
―
Stephanie Foo,
What My Bones Know: A Memoir of Healing from Complex Trauma
