Bush is an admitted alcoholic -- who claims that he stopped drinking (cold turkey?). He is an untreated alcoholic. Randi Rhodes was interviewing the author of Bush on the couch. Bush is bat shit crazy -- and more than likely alcohol messed up his brain -- he has an alcoholic personality.
There is plenty of evidence to show that people who drink high volumes of alcohol are vulnerable to mental ill-health. Regular drinking is thought to change the chemistry of the brain and deplete the neurotransmitters it needs to prevent anxiety and depression naturally. According to the WHO, enough evidence exists to assume alcohol contributes to depression.
How many of us know the anxiety and low mood that can come on with an ordinary hangover? In fact while we're still drunk, we often experience amplification of feelings we might have been trying to numb. This is because alcohol depresses the central nervous system, removing inhibitions. And it is why so many people become aggressive, weepy or flirtatious after a few. A sobering additional finding cited in the report is that 70% of men who kill themselves have drunk alcohol before doing so.
Mounting evidence shows that millions are using alcohol to deal with mental and emotional problems, and that excessive drinking is in turn accelerating the increase of reported mental illness in the UK. http://www.guardian.co.uk/medicine/story/0,,1755926,00.html