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.
Image: Film Magic/Film Magic/Getty. Stress is the most common cause of irregular periods. Cortisol, the stress hormone, has a direct impact on how much estrogen and progesterone, two sex hormones, gets produced by the body. If you have too much cortisol in your bloodstream, the time and flow of your cycle could change.