Most people get “the blues” sometimes that last a day or two. However, Major Depressive Disorder is a SERIOUS and often FATAL illness that occurs in approximately 6.7 percent of US adults. Medications can be helpful, but come with side effects that many people cannot tolerate. Medications will NOT cure the mistaken belief system causing the depression. Read further to see a list of symptoms that may be a sign you or someone you love may be experiencing depression.