The iPhone 6s and 6s Plus are made from a 7000 Series aluminum alloy, which is stronger and more durable than the 6000 series used in the previous-generation iPhones. Apple's also updated the devices with stronger glass, made using a dual ion exchange process.
Sacral Nerves. The brain tells the bladder and bowel what to do by sending electrical signals to the muscles in the pelvic floor, the sphincters, the urethra as well as the bladder and rectal area. The messages or impulses sent by the brain to the pelvic area are carried by a system of special fibres called nerves.
Vagal Nerve Stimulation. Vagal nerve stimulation is a treatment used to reduce the frequency and intensity of seizures when medications aren't effective. The vagus nerve is one of many nerves that carry messages to and from the brain. It helps regulate internal organs such as the heart and stomach. Nerve fibers within the vagus nerve are connected to the part of the brain believed to be responsible for producing seizures. This procedure involves placing a small electric stimulator in the neck around the vagus nerve and a power source near the armpit or chest.