Researchers who studied people injured in the 9/11 attacks found that the injured later suffered from these results demonstrate how stress is linked to the development and progression of a variety of physical illnesses and diseases.

significantly elevated rates of heart disease

Explanation:

The people injured in the 9/11 atacks became more prone to elevated rates of heart disease, this could be due to post traumatic stress, which eventually with time will decrease the quality of life and high stress levels can produce and affect the health of people that suffer from it.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.