Updated March 10, 2017. Often abbreviated as OS, an operating system is powerful, and usually large, program that controls and manages the hardware and other software on a computer. All computers and computer-like devices have operating systems, including your laptop, tablet, desktop, smartphone, smartwatch, router...
Why It Is Used. Methadone is commonly used to treat addiction to opiates (such as heroin). Taken once a day, methadone eases opiate withdrawal for 24 to 36 hours, decreasing the chance of relapse.hy It Is Used. Methadone is commonly used to treat addiction to opiates (such as heroin). Taken once a day, methadone eases opiate withdrawal for 24 to 36 hours, decreasing the chance of relapse.
A large (about 500 participants) double-blind, placebo-controlled study failed to find that use of selenium supplements at 100 mcg, 200 mcg, or 300 mcg daily improved mood or general well-being . 59. A study of 197 people with moderately severe asthma failed to find benefit with selenium (100 mcg daily).