Answer:
Double depression
Step-by-step explanation:
Double depression can be described as the co-existence of two types of depressive order which are major depressive disorder and persistent depressive disorder.
Recent studies have shown that Double depression tends to be more serious than either Major depressive disorder(MDD) or Persistent Depressive disorder(PDD) and that individuals who experience Double depression disorder relapse more often than those with either MDD or PDD alone.