Final answer:
Approximately 12.5 million Americans, or about 1 in 17 people, are estimated to be suffering from a diagnosable mental illness.
Step-by-step explanation:
Approximately 12.5 million Americans, or about 1 in 17 people, are estimated to be suffering from a diagnosable mental illness. These mental illnesses are nervous system disorders that result in problems with thinking, mood, or relating with other people. They are severe enough to affect a person's quality of life and make it difficult for them to perform daily tasks. Some examples of mental disorders include schizophrenia, major depression, bipolar disorder, anxiety disorders, post-traumatic stress disorder (PTSD), and obsessive-compulsive disorder (OCD), among others.