Depression
Mood can be affected by the seasons. When winter comes and the days grow shorter, it’s not uncommon for people to feel down in the dumps. For some people, this dip in mood can be more than just a passing case of the blues. It can be full-blown depression. While many factors can contribute to depression, new research suggests that a vitamin D deficiency may be to blame.
One study found that people with vitamin D deficiency were more likely to experience symptoms of depression than those with sufficient levels of vitamin D. Other studies have found similar results, with low levels of vitamin D being linked to an increased risk of depression, especially in older adults.
There are a few theories about how vitamin D deficiency might lead to depression. One theory is that vitamin D plays a role in serotonin production. Serotonin is a neurotransmitter sometimes referred to as the happy hormone because it’s associated with happiness and well-being. Low levels of serotonin have been linked to depression. Another theory is that vitamin D affects inflammation throughout the body, which is linked to depression.
