Here are a couple of studies on smoking, a couple on B vitamins, a couple on vitamin D, and an intriguing study on iron.  The smoking papers underline the varieties of damage this habit produces.  So the Pasco et al study shows that, for women, being a smoker is associated with double the risk of developing subsequent major depression.  The Strandberg research challenges any notion of "Eat, drink and be merry for tomorrow we die".  This study of 1658 men reports that "During the 26-year follow-up of this socioeconomically homogeneous male cohort, HRQoL (quality of life) deteriorated with an increase in daily cigarettes smoked in a dose-dependent manner.

Here are half a dozen recent studies involving cognitive therapy (CBT).  The first by Craigie et al explores the use of mindfulness-based cognitive therapy (MBCT) to treat generalized anxiety disorder (GAD).  Although, as one would expect, MBCT helped GAD sufferers, it was noteworthy that results "fall well short of outcomes achieved by past research".  This adds to my concern that mindfulness training may at times be being over-hyped - see a blog I wrote in September for for more on this.  The next study by Cuijpers et al also suggests limitations to the march of CBT with interpersonal psychotherapy looking a somewhat better candidate for prevention of depression onset.  I guess one could argue that CBT can - and probably more often should - include  behavioural interventions to promote improved relationships.  Click here for tools that can help this approach.   The third piece of research by Grey et al is exciting.  It challenges the Alice in Wonderland dodo bird suggestion that "everyone has won, and all must have prizes"

This is the 5^th in a series of blog posts about the 10^th September SIGN draft guideline day on "Non-pharmacological management of depression."  On the day, the

Bryant, R. A., J. Mastrodomenico, et al. (2008).