Diseases that cause Hyper-excitability. Peripheral nerve hyperexcitability (PNH) is any disorders associated with twitching spasms, spontaneous muscular activities, facial tics etc.iseases that cause Hyper-excitability. Peripheral nerve hyperexcitability (PNH) is any disorders associated with twitching spasms, spontaneous muscular activities, facial tics etc.
On April 6, 1652 the first white people (Dutch) arrived in South Africa to establish a settlement at the Cape. Their purpose, initially, was not to colonize the area, but to s â¦ upply fresh food for the men on the Dutch ships sailing on the long route between Europe and India.
Map showing the distribution of the population in South Africa by language groupThe Amazing Bantu Migration in Africa. Some 2 000 years ago, when the first waves of black settlers began arriving in southern Africa, they brought with them the advantages of an Iron Age culture, farming skills and domesticated crops.fter they had settled in the eastern parts of South Africa, they eventually spread out across the highveld some 1 000 years ago, because of their need for more land on which to practise their growing cattle culture. The first African settlements in South Africa were mainly in the Transvaal and Natal areas.