Vitamin D deficiency
Vitamin D deficiency can occur due to lack of skin exposure to sunlight. Built environments that restrict access to natural light can increase the risk of vitamin D deficiency.
Zielinska-Dabkowska, K. M., & Xavia, K. (2019, April 23). Protect our right to light. Nature. Retrieved from https://www.nature.com/articles/d41586-019-01238-y