Abstract Background Drug addiction is a chronic brain disorder characterized by the compulsive use of drugs. The study of chronic morphine-induced adaptation in the brain and its functional significance is of importance to understand the mechanism of morphine addiction. Previous studies have found a number of chronic morphine-induced adaptive changes at molecular levels in the brain. https://www.getpureroutine.com/limited-deal-swisse-ultiboost-high-strength-magnesium-powder-berry-180g-supply-top-savings/