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.
The first farmers. For a period of time that is almost impossible to imagine, all the inhabitants of Southern Africa were Stone Age hunter-gatherers. Then about 2 000 years ago (100 BC), the Khoikhoi herders came South, bringing sheep with them. The way of life of the Khoikhoi herders soon came into conflict with that of the San hunter-gatherers. The wheel of change had begun to turn. In about 250 AD, African farmers came to Southern Africa from further North.