In addition to making physical activity difficult, the traditional attire prevents sun exposure and leads to another dysfunction, that of vitamin D deficiency. According to a study by the Hamad Medical Hospital in Doha, 90% of those involved in the study suffered from this deficiency due to a lack of exposure to the sun's rays. In an interview with the Qatari press, Doctor Mohamed Khanjar of the Hamad Medical Hospital urged the population to expose their faces, calves and hands to the sun for at least 30 minutes per day - being the only parts of the body able to be revealed without giving rise to religious or social problems.
Due to their personal choice or that of their families, Muslim women avoid sports leading to contact with men or in their presence, and so many gyms and sports centres become off-limits. Another obstacle to sports is Ramadan, an entire month set aside for fasting and the avoidance of food and water before sundown. During Ramadan most of the population sleep during the day, with the iftar beginning at sundown: large feasts at which many end up eating so much they need to be taken to hospital casualty wards, with a record high almost 8,000 cases of indigestion recorded at the Hamad Medical Hospital emergency room solely in the first week of Ramadan 2011. In this sense the habits and customs of the Arab world foster an increase in the rate of diabetes within a population that is steadily putting on more and more weight and living a sedentary lifestyle. Another traditional practice leading to disease, in this case of a genetic type, are marriages between members of the same family. In Gulf countries marriages are often arranged between families, causing cousins and relatives to marry each other.
These marriages often result in the birth of children with serious genetic disorders, including Down Syndrome. According to the Center for Arab Genomic Studies (CAGS) there are over 250 types of genetic disorders in the United Arab Emirates, the country seeing the fifth highest rate of inter-family marriages, with half being between members of the same family. The true tragedy linked to this cultural habit are the cases of children with birth defects, In Qatar, about 19,000 children are born every year, and the Paediatric Surgery Department of Doha's Hamad Medical Corporation carries out about 3,000 paediatric operations every year, including over 200 on children born with serious birth defects. This is why at Qatar's First International Paediatric Surgery Congress and the 12th edition of the Pan-Arab Paediatric Surgeons Association Congress there was discussion on the surgical procedures for birth defects, as it is the main problem in the sector. (ANSAmed).