In light of Sarawak’s law enforcement war on drugs, there has been an recurrence of certain drugs that have been present in every raid, methamphetamine. Just days ago did the Miri police force arrest two men on the account of drug possession, believed to be Methamphetamine, in Kampung Bungai, Bekenu.  The amount repossessed by the police were 37g of drugs which are approximately valued at RM3,700. With in mind, what are the effects of methamphetamine?