Early rheumatoid arthritis tends to affect your smaller joints first â particularly the joints that attach your fingers to your hands and your toes to your feet. As the disease progresses, symptoms often spread to the wrists, knees, ankles, elbows, hips and shoulders. In most cases, symptoms occur in the same joints on both sides of your body.
The Arabian Peninsula plays a critical geopolitical role in the Middle East and the Arab world due to its vast reserves of oil and natural gas. Before the modern era, it was divided into four distinct regions: Hejaz, Najd, Southern Arabia and Eastern Arabia.
The most prominent feature of the peninsula is desert, but in the southwest there are mountain ranges which receive greater rainfall than the rest of the Arabian Peninsula. The peninsula's constituent countries are Bahrain, Kuwait, Oman, Qatar, the United Arab Emirates (UAE), Yemen and Saudi Arabia. Arabia Deserta (Desert Arabia): signified the desert interior of the Arabian peninsula. 2  As a name for the region, it remained popular into the 19th and 20th centuries, and was used in Charles M. Doughty's Travels in Arabia Deserta (1888).