Major Depression Criteria Mnemonic

DEAD SWAMP:

Depressed mood most of the day
Energy loss or fatigue
Anhedonia
Death thoughts (recurrent), suicidal ideation or attempts

Sleep disturbances (insomnia, hypersomnia)
Worthlessness or excessive guilt
Appetite or weight change
Mentation decreased (ability to think or concentrate, indecisiveness) 
Psychomotor agitation or retardation