Depression and other mood disorders damage self-esteem, as can addiction to drink or drugs, eating disorders, and compulsions, such as a compulsion to exercise, have sex, gamble or clean. Depression is an illness that can be treated, but there is still great debate about whether or not mood disorders cause low self-esteem or low self-esteem causes mood disorders. If self-esteem is low, depression is more likely, but sometimes depression strikes for no apparent reason. If you are suffering from depression or any kind of compulsive behaviour, the advice in this book will help, but it is important that you also seek professional help.