Discount brokerages require a minimum age of 18. However, you can create a sub-account under your dads name (as long as he signs some sort of consent form) and these sub-accounts don't have a minimum age requirement.
Vitamin D deficiency rickets can be caused by a lack of vitamin D in the diet, a lack of exposure to the sun, or malabsorption syndromes in which there is an inability of the intestines to adequately absorb nutrients from foods.
Whether low levels of vitamin D cause depression, worsen it, or are a symptom of the underlying depression is not fully understood. There is no solid proof that vitamin D deficiency causes depression , says researcher Sonal Pathak, MD.