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12. Methamphetamine – $100 per gram
As the illegal substance that helped drive the plot of Breaking Bad, methamphetamines are some of the most addictive substances in the world, resulting in serious health problems for hundreds of thousands of people in North America.The drug’s ability to rapidly release dopamine in the brain causes side effects such as violent behavior, psychosis, paranoia, anxiety, sleep deprivation and intense mood swings. Sadly, extreme addiction can also result in “meth face” and death.
