I recently started a daily dose of B12 & Folic acid, after watching a TV science show in which the reporter took this for 3 months. At the end of that time, he tested to have a reduced occurrence of 'deteriorated white blood cells' - which it is said may be related to 'relative age' and may be an indicator of cancer susceptibility.

I used to take high doses of B12 when I was under much stress at work, and it eased my depression - but it was very expensive and hard to get then. My mood has lifted a lot since starting the tabs, and my feet no longer need a hot water bottle in winter this year.