Vitamin D deficiency can be difficult to notice because it sometimes causes no symptoms, but a study published in October 2019 in the journal Nutrients found that older adults with lower vitamin D levels reported fatigue.
It is better to take vitamin D in the morning, in the first half of the day, but definitely not in the evening.
Vitamin D reduces the level of melatonin (sleep hormone), disrupting the quality of sleep.
Avoid inappropriate use of vitamin D supplements for you and your children to avoid hypervitaminosis D.
Insufficient insolation disrupts the transition of vitamin D to its active form, and this leads to: a decrease in the production of “good mood hormones” responsible for the formation of positive emotions - serotonin and dopamine; development of depressive states; decreased stress resistance and attention.
Vitamin D, being a steroid hormone, has a stimulating effect on brain activity in both the embryo and the adult; regulates the activity of neural circuits, as well as motor and emotional behavior.