Patients selecting mechanical heart valve replacements are typically required to monitor their INR levels (international normalized ratio) to prevent risks of blood clotting, hemorrhage or stroke. To ease this process, home INR testing machines are now becoming more affordable and easy-to-use.
Archaeologists and historians don't know exactly how Egyptian civilization evolved. It is believed that humans started living along the Nile's banks starting in about 6,000 B.C.E. For the earliest inhabitants of the Nile Valley food was not easy to find.
In ancient Egypt, the Nile, and its delta, were worshiped as a god. The god Hapi, who came in the shape of a frog, represented the Nile delta. Several times throughout history, Egyptians have tried to unify the Nile valley under their rule by conquering the Sudan.he White Nile rises from its source in Burundi, passes through Lake Victoria, and flows into southern Sudan. There, near the capital city of Khartoum, the White Nile meets up with the Blue Nile which has its source in the Ethiopian highlands, near Lake Tana.