Vitamin D, or the sunshine vitamin, is an important nutrient for the body. Vitamin D deficiency can lead to weak bones and increase the risk of osteoporosis, bone pain, and arthritis. And if a new study is to be believed, then the vitamin can lead to aggressive behaviour in adolescents. Conducted by researchers at the University of Michigan, the study found a link between Vitamin D deficiency in young kids to aggression in their adolescent age. The sunshine vitamin is synthesised in the body in the presence of sunlight. The body needs it to absorb calcium and make bones stronger. That’s why the people living in Antarctica suffer from vitamin D deficiency because there isn’t enough sunlight. In a study that was carried out in Antarctica, 90% of the 130 expeditioners had a lower bone density at the hip by 2%.