Chapter 5 - The Integumentary System - Review Questions - Critical Thinking and Clinical Application Questions - Page 171: 5

Skin's exposure to sunlight (Ultraviolet Rays in particular) causes the production of Vitamin D. Vitamin D helps with the retaining of calcium in the bones. Calcium is what makes the bones healthy and strong. The Burka drastically reduces the amount of sunlight exposure Muslim women get, therefore decreasing their vitamin D levels and making it difficult for their bones to acquire calcium.

Skin's exposure to sunlight (Ultraviolet Rays in particular) causes the production of Vitamin D. Vitamin D helps with the retaining of calcium in the bones. Calcium is what makes the bones healthy and strong. The Burka drastically reduces the amount of sunlight exposure Muslim women get, therefore decreasing their vitamin D levels and making it difficult for their bones to acquire calcium.