Weekly mood changes can be correlated with the work pattern of a seven-day week.
Many migraine patients have depression and headaches during the weekend. This is called relaxation headache, and the migraine sufferer may therefore never get to rest and evolves into the “Type A” personality that seldom relaxes-the workaholic.
Excessive stress may dissipate all zinc and B6 so that the person becomes pyroluric and has excessive mood swings. They are easily treated with adequate zinc and B6.
– Nutrition and Mental Illness, Carl C. Pfeiffer