Caroll Marlow meditates at her home in Frontenac, Mo. “The day I learned I had been accepted into the trial was the best day of my life. It gave me hope,” said Marlow, who has suffered with depression caused by a chemical imbalance since her early 20s. Laurie Skrivan/St. Louis Post-Disatch/MCT
Read the article: Nation’s elderly not immune to depression

