-Why have rates of transgender identification increased in adolescents?

-Why did anorexia become much more common starting in 1983?

-Why is depression more common in women?

-Is depression caused by low levels of serotonin?

-Is depression a disease?

-Why do most people with major depression have an anxiety disorder as well?

-Does telling people about PTSD make them more likely to develop PTSD?

-Puppy pregnancy syndrome: after being bit by a dog, people believe they are pregnant with puppies