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).
Country Profile: Sudan. Background: Sudan's civil war. Southern Sudan's secession on July 9 is the latest chapter in a half-century struggle between the north and south. Southern Sudan accounts for between 75 and 80 per cent of Sudan's daily output. Its most productive oil fields are in the Paloich and Malut areas of Upper Nile state.