1 In contrast, Preseedâs osmolality matches that of semen and thus does not harm or damage sperm.  Viscosity â The texture of many vaginal lubricants also negatively affect fertility by inhibiting the sperm from traveling up the vagina and through the cervix quickly and efficiently.
The Civil War in Sudan was caused by religious tensions between the North and the South. The two main religions are Sunni Muslim (North) and Christians or other traditional beliefs (south).
South Sudan faces worsening food crisis. (CNN)Here's a look at South Sudan, a landlocked country in east-central Africa, bordering Sudan, Ethiopia, Kenya, Uganda, Democratic Republic of the Congo and the Central African Republic. In 2011, South Sudan gained its independence from Sudan. The country is poverty-stricken despite containing vast oil reserves.