Quick Answer. According to the official Bluetooth website, the technology was invented in 1994 by a group of engineers at Ericsson. It was originally intended to act as a wireless alternative to RS-232 cables.
Quick Fact. While a rash can appear anywhere on the body, rashes due to severely dry skin caused by menopause tend to pop up on the forehead, nose, back, neck, chest, arms, or legs. To understand the link between itchy skin rashes and menopause, you need to know about estrogen. Estrogen is the hormone that stimulates the formation of skin-smoothing collagen and oils. That's why, as menopause approaches and estrogen production diminishes, dry, itchy skin and rashes become very common.
Doctors have not pinpointed the exact cause of PMS, but many believe it is linked to changing hormone levels. Following a girl's period, the amounts of estrogen and progesterone (female hormones) in her body increase. Then about 1 week before her period starts, levels of both of these hormones begin to fall. The thinking is that these changing hormone levels can lead to PMS symptoms.