effects on mental disorders

Culture clearly has strong effects on mental disorders.  How does this influence what you think about what is normal or abnormal?  The German Philosopher Friedrich Nietzsche thought that society itself might be neurotic, and suggested that our societies set up a “neurosis of health.”  What do you think he meant by that?  Do you think that society is unhealthy, and adapting to a sick society makes us depressed, anxious and off balanced?