Her mother,Gladys Baker, suffered from mental problems.

VOA: special.2009.12.06

He used long talks with patients and the study of dreams to search for the causes of mental and emotional problems.

VOA: special.2010.04.13

"The problem with that body of research is that it's difficult to interpret because obviously people with existing mental health problems use cigarettes to self-medicate."

VOA: standard.2010.06.15