Major Depressive Disorder. Lexapro (escitalopram) is indicated for the acute and maintenance treatment of major depressive disorder in adults and in adolescents 12 to 17 years of age [see Clinical Studies (14.1)].
While environmental factors play into someone with controlling behavior, it could also be a genetic predisposition to certain mental illnesses, like OCD, bipolar or even personality disorders. It can also occur due to low-self esteem on the part of the controlling individual. add a comment.
Neural and Hormonal Affects. There are two different factors involved in heart rate management: intrinsic and extrinsic controls. Intrinsic regulation of heart rate is the result of the unique nature of cardiac tissue - it is self-regulating and maintains it's own rhythm without direction.