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.
A small number of people of European ethnicity first came to Southern Rhodesia (now Zimbabwe) as settlers during the late 19th century. A steady immigration of white people continued for about the next 75 years. The white population of Zimbabwe reached a peak of about 296,000 in 1975, representing just over four percent of the population, but numbers then started to drop, to around 120,000 in 1999, and to no more than 50,000 in 2002, possibly much less.